Eight-year weight losses with an intensive lifestyle intervention: The look AHEAD study
Open accessAbstract
OBJECTIVE: To evaluate 8-year weight losses achieved with intensive lifestyle intervention (ILI) in the Look AHEAD (Action for Health in Diabetes) study. DESIGN AND METHODS: Look AHEAD assessed the effects of intentional weight loss on cardiovascular morbidity and mortality in 5,145 overweight/obese adults with type 2 diabetes, randomly assigned to ILI or usual care (i.e., diabetes support and education [DSE]). The ILI provided comprehensive behavioral weight loss counseling over 8 years; DSE participants received periodic group education only. RESULTS: All participants had the opportunity to complete 8 years of intervention before Look AHEAD was halted in September 2012; ≥88% of both groups completed the 8-year outcomes assessment. ILI and DSE participants lost (mean ± SE) 4.7% ± 0.2% and 2.1 ± 0.2% of initial weight, respectively (P < 0.001) at year 8; 50.3% and 35.7%, respectively, lost ≥5% (P < 0.001), and 26.9% and 17.2%, respectively, lost ≥10% (P < 0.001). Across the 8 years ILI participants, compared with DSE, reported greater practice of several key weight-control behaviors. These behaviors also distinguished ILI participants who lost ≥10% and kept it off from those who lost but regained. CONCLUSIONS: Look AHEAD's ILI produced clinically meaningful weight loss (≥5%) at year 8 in 50% of patients with type 2 diabetes and can be used to manage other obesity-related co-morbid conditions.
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Claims the paper makes
18 of 33 cited sources checked · 9 supported · 0 flagged · accuracy not yet measured
- Study design and conductcitation
The ILI and DSE groups did not differ significantly on baseline characteristics.
“ILI and DSE participants did not differ significantly on baseline characteristics, as reported previously (see Table 1).2,33”
Quote in the paperNot a substantial claim2 of 2 sources checked - Interpretationown data
Part of the weight loss seen in older intensive lifestyle intervention participants likely resulted from the combined influence of diabetes and aging.
“Some of their weight loss, however, probably was attributable to the combined effects of diabetes36 and aging, since it also occurred in older participants in Look AHEAD’s DSE group and in the original placebo-treated group of the Diabetes Prevention Program Outcomes Study.34”
Quote in the paperNot a substantial claim1 of 2 sources checked - Findingcitation
At year 1, more ILI than DSE participants lost at least 10% of initial weight (37.7% vs. 2.9%, p<0.001).
“As reported previously,33 more ILI than DSE participants lost ≥5% of initial weight (68.0% vs. 13.3%, p <0.001), as well as ≥10% (37.7% vs. 2.9%, p<0.001).”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [33] source
The Results section (“Weight Loss in ILI and DSE Groups”; page not available) reports that significantly more ILI than DSE participants lost at least 10% of initial weight at year 1 (p < 0.001). The ILI figure is 37.7%, as claimed, but the paper gives 3.3% for DSE, not 2.9%. (LLM, conf=0.92)
Experimental — accuracy not yet measured
- Premisecitation
Look AHEAD found no significant difference in cardiovascular morbidity and mortality between the intensive lifestyle intervention and diabetes support and education groups after an average follow-up of 9.6 years.
“The trial’s primary outcome was cardiovascular morbidity and mortality, on which no significant differences were observed between participants assigned to ILI or a usual care group (i.e., diabetes support and education [DSE]) after a mean follow-up of 9.6 years.2”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [2] source
The Results (Clinical Outcomes) and Discussion report no significant difference in cardiovascular morbidity and mortality between the intensive lifestyle intervention and diabetes support and education groups. The Results (Study Participants) give 9.6 years as the median follow-up, not the mean stated in the citing sentence; no page numbers are available in our copy. (LLM, conf=0.90)
Experimental — accuracy not yet measured
- Findingcitation
At year 1, more ILI than DSE participants lost at least 5% of initial weight (68.0% vs. 13.3%, p<0.001).
“As reported previously,33 more ILI than DSE participants lost ≥5% of initial weight (68.0% vs. 13.3%, p <0.001), as well as ≥10% (37.7% vs. 2.9%, p<0.001).”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [33] source
The Results section, “Weight Loss in ILI and DSE Groups” (page unavailable), reports significantly greater year-1 weight loss in ILI and gives comparisons at the ≥7% and ≥10% thresholds. It does not report the claimed ≥5% figures of 68.0% and 13.3%, so those specific percentages are unsupported by our copy. (LLM, conf=0.84)
Experimental — accuracy not yet measured
- Findingown data
Within the ILI group, the oldest participants (65-76 years) consistently lost more weight than the youngest (45-54 years), with differences from 0.9% to 3.0%.
“By contrast, the oldest ILI individuals (65–76 years at baseline) consistently lost more weight than the youngest participants (45–54 years), with differences ranging from 0.9% (year 1) to 3.0% (year 8).”
Quote in the paperNot a substantial claim - Findingown data
ILI participants achieved significantly greater increases in moderate-intensity physical activity than DSE at all subsequent assessments.
“ILI participants, compared with DSE, achieved significantly greater increases on this measure at all subsequent assessments (see Table 3).”
Quote in the paperNot a substantial claim - Findingown data
At year 8, fewer ILI than DSE participants exceeded their baseline weight (26.4% vs. 39.2%, p<0.001).
“Fewer participants in ILI than DSE (26.4% vs. 39.2%; p<0.001) exceeded their baseline weight at year 8 (see Figure 3b).”
Quote in the paperSubstantial claim - Findingown data
Only 34.5% of ILI participants who did not lose at least 5% in the first year achieved this goal at year 8.
“The lifestyle intervention’s strengths are offset by findings that 32% of ILI participants did not lose at least 5% of initial weight in the first year, and only 34.5% of these individuals achieved this goal at year 8.”
Quote in the paperSubstantial claim - Findingown data
ILI produced greater mean weight loss than DSE at all years.
“Figure 2 shows that ILI produced greater mean weight loss than DSE at all years and that weight regain in ILI, following maximum weight loss at year 1, plateaued between years 4–6.”
Quote in the paperSubstantial claim - Findingown data
Of 633 ILI participants who lost 5 to <10% at year 1, 47.9% had a loss ≥5% at year 8.
“Figure 4b presents weight loss trajectories of the 633 participants who at year 1 lost 5 to <10% of initial weight and shows that 303 (47.9%) had a loss ≥5% at year 8.”
Quote in the paperSubstantial claim - Findingown data
Within the ILI group, men and women achieved comparable weight losses over 8 years, with mean differences ranging from 0.3% to 0.9%.
“Within the ILI group, men and women achieved comparable weight losses over the 8 years, with mean differences between them ranging from 0.3% (year 1) to 0.9% (year 8) (Table 2).”
Quote in the paperNot a substantial claim - Findingown data
32% of ILI participants did not lose at least 5% of initial weight in the first year.
“The lifestyle intervention’s strengths are offset by findings that 32% of ILI participants did not lose at least 5% of initial weight in the first year, and only 34.5% of these individuals achieved this goal at year 8.”
Quote in the paperSubstantial claim - Findingown data
Of 656 ILI participants who lost <5% at year 1, 34.5% achieved a ≥5% loss at year 8.
“Figure 4c presents similar results for the 656 participants who lost <5% at year 1, of whom 226 (34.5%) achieved a ≥5% loss at year 8.”
Quote in the paperSubstantial claim - Findingown data
At year 8, more ILI than DSE participants met the ≥5% weight-loss criterion (50.3% vs. 35.7%, p<0.001).
“More ILI than DSE participants met the ≥5% (50.3% vs. 35.7%; p<0.001) and ≥10% (26.9% vs. 17.2%; p<0.001) categorical losses.”
Quote in the paperSubstantial claim - Findingown data
At years 4 and 8, mean weight losses were comparable among the four racial/ethnic groups in ILI.
“However, at years 4 and 8, mean weight losses were comparable among the four racial/ethnic groups, as they were among DSE participants at all years.”
Quote in the paperNot a substantial claim - Findingown data
Non-Hispanic white ILI participants lost significantly more weight at year 1 than African American, Hispanic, and American Indian/Other participants.
“Non-Hispanic white participants in ILI lost significantly more weight at year 1 than participants who self-identified as African American, Hispanic, and American Indian/Other.”
Quote in the paperNot a substantial claim - Findingown data
Weight regain in ILI after the year-1 maximum plateaued between years 4 and 6.
“Figure 2 shows that ILI produced greater mean weight loss than DSE at all years and that weight regain in ILI, following maximum weight loss at year 1, plateaued between years 4–6.”
Quote in the paperNot a substantial claim - Findingown data
At year 8, more ILI than DSE participants met the ≥10% weight-loss criterion (26.9% vs. 17.2%, p<0.001).
“More ILI than DSE participants met the ≥5% (50.3% vs. 35.7%; p<0.001) and ≥10% (26.9% vs. 17.2%; p<0.001) categorical losses.”
Quote in the paperSubstantial claim - Interpretationown data
Look AHEAD contributes to obesity management by demonstrating that a comprehensive long-term lifestyle intervention led to at least 5% weight loss at year 8 in half of the participants.
“In summary, Look AHEAD advances the management of obesity by showing that a comprehensive, long-term lifestyle intervention produced ≥5% weight loss at 8 years in 50% of participants.”
Quote in the paperSubstantial claim - Interpretationnone given
Among randomized controlled evaluations of intensive lifestyle interventions for weight management, Look AHEAD has the longest duration to date.
“Look AHEAD is the longest randomized controlled evaluation to date of an intensive lifestyle intervention for weight management.”
Quote in the paperNot a substantial claim - Interpretationown data
The logistic regression results indicated that losing weight successfully in the first year is important for reaching a clinically meaningful weight loss by year 8.
“Logistic regression analyses clearly revealed the importance of successful first-year weight loss for achieving a clinically meaningful loss at year 8.”
Quote in the paperSubstantial claim - Interpretationnone given
African American participants in Look AHEAD achieved weight losses that are among the largest reported in the literature.
“Weight losses of African Americans were among the largest reported in the literature.”
Quote in the paperNot a substantial claim - Study design and conductown data
At least 88% of participants in each group completed the 8-year outcomes assessment.
“Figure 1 shows that 89.9% and 88.3% of ILI and DSE participants, respectively, completed the 8-year outcomes assessment (p=0.077).”
Quote in the paperNot a substantial claim - Interpretationown data
The intensive lifestyle intervention is applicable for managing other health conditions related to obesity.
“Look AHEAD’s ILI produced clinically meaningful weight loss (≥5%) at year 8 in 50% of patients with type 2 diabetes and can be used to manage other obesity-related co-morbid conditions.”
Quote in the paperSubstantial claim
- May combine two claims. 22
- Classified as probably not a substantial claim. 7
May combine two claims.
PremisecitationA weight reduction of 5% or more brings further health benefits, such as preventing or resolving type 2 diabetes, lowering blood pressure and lipids, improving non-alcoholic fatty liver disease, and alleviating urinary incontinence and sexual dysfunction.
“Weight loss of this size confers additional health benefits beyond those described above. These include prevention and resolution of type 2 diabetes,11,12 reduction in blood pressure and lipids,13–14 amelioration of non-alcoholic fatty liver disease,15 and improvements in urinary incontinence and sexual dysfunction.16,17”
Quote in the paperSubstantial claim2 of 5 sources checked- cites [11] source
- cites [12] source
The Results report that remission was more common among participants with greater weight loss, including those who lost more than 6.5% of their weight. The Comment reports diabetes-prevention findings from other studies, but this paper studied remission in adults who already had type 2 diabetes; it does not establish a 5% threshold for either outcome. The other listed benefits are attached to different citations in the citing sentence. (LLM, conf=0.84)
Experimental — accuracy not yet measured - cites [13] source
- cites [14] source
- cites [15] source
The Discussion reports that approximately 9% weight loss in obese older adults reduced intrahepatic fat by about 50%, and that the prevalence of NAFLD fell during the intervention. This supports the NAFLD benefit for which this paper is cited, but does not establish that weight loss as low as 5% is sufficient. (LLM, conf=0.83)
Experimental — accuracy not yet measured
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe long-term weight loss maintenance program in Look AHEAD was based on the Diabetes Prevention Program and similar protocols.
“Look AHEAD’s long-term weight loss maintenance intervention, which included monthly or twice monthly individual contacts combined with periodic group meetings (i.e., refresher groups and national campaigns), was modeled on the DPP11,21 and similar protocols.30,37”
Quote in the paperNot a substantial claim1 of 4 sources checkedMay combine two claims.
PremisecitationThe Diabetes Prevention Program Outcomes Study had 10 years of follow-up for a lifestyle weight-loss intervention, but both the lifestyle and comparison groups began receiving weight-loss counseling after an average of 3.2 years from randomization.
“The Diabetes Prevention Program Outcomes Study34 reported 10 years of follow-up of a lifestyle weight-loss intervention, but both the lifestyle group and the comparison groups received weight loss counseling after a mean of 3.2 years since randomization.”
Quote in the paperNot a substantial claim1 of 1 sources checked- cites [34] source
Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
Experimental — accuracy not yet measured
May combine two claims.
InterpretationcitationLonger maintenance of weight loss might further reduce the risk of type 2 diabetes in at-risk people and preserve gains in sleep apnea, physical mobility, and other conditions improved by weight loss.
“Sustaining weight loss for longer periods may further improve the prevention of type 2 diabetes in at-risk individuals,34 as well as maintain improvements in sleep apnea,5 physical mobility,6 and other health conditions ameliorated by weight loss.7–9”
Quote in the paperSubstantial claim3 of 3 sources checked- cites [34] source
The Discussion reports that weight loss during the DPP was associated with diabetes prevention and that reduced cumulative diabetes incidence persisted for at least 10 years. But the Findings say the lifestyle group partly regained weight, and diabetes incidence during follow-up was similar across groups. The paper supports sustained prevention in at-risk adults, not the more specific suggestion that maintaining weight loss for longer would further improve it. The sleep-apnea and mobility claims have separate citations and are not attributed to this source. (LLM, conf=0.82)
Experimental — accuracy not yet measured - cites [5] source
- cites [6] source
May combine two claims.
Interpretationown dataProviding a weight loss maintenance intervention over an extended period can support clinically meaningful weight loss for as long as 8 years, which is two to three times longer than previous randomized trials examined.
“Look AHEAD, however, has demonstrated that the extended provision of a weight loss maintenance intervention can facilitate clinically meaningful weight loss for up to 8 years – two to three times the duration examined in previous randomized trials.30,37,38”
Quote in the paperSubstantial claim1 of 3 sources checked- cites [30] source
The Abstract describes STOP Regain as a randomized weight-loss-maintenance trial lasting 18 months, so it supports citing this paper as a previous, shorter trial. It does not support the stated two-to-three-times comparison: eight years is more than five times 18 months. The Look AHEAD result is not a finding of this paper. (LLM, conf=0.88)
Experimental — accuracy not yet measured - cites [37] source
- cites [38] source
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationPrior research has linked long-term weight control to several behaviors: increasing physical activity, monitoring body weight, reducing calorie and fat intake, and using meal replacements.
“All participants also reported at baseline and years 1–4, as well as at year 8, the number of weeks in the prior year that they engaged in behaviors previously determined to be associated with long-term weight control: 1) increasing physical activity;27–29 2) monitoring body weight;30,31 3) reducing calorie and fat intake;32,33 and 4) using meal replacements.33”
Quote in the paperNot a substantial claim4 of 7 sources checked- cites [27] source
- cites [28] source
- cites [29] source
- cites [30] source
- cites [31] source
- cites [32] source
- cites [33] source
The Results (Treatment Adherence and Weight Loss; page unavailable) link greater meal-replacement use to greater weight loss at one year. The Methods (Treatment Conditions; page unavailable) prescribe calorie and fat limits, but the paper does not establish that reducing both intakes was associated with long-term weight control. The physical-activity and weight-monitoring items have separate citations in the citing sentence. (LLM, conf=0.88)
Experimental — accuracy not yet measured
May combine two claims.
Findingown dataAmong ILI participants who maintained ≥10% loss at year 8 versus those who regained above baseline, maintainers reported higher activity-related energy expenditure (1471.9 vs. 799.9 kcal/week, p<0.001) and more weeks reducing calorie and fat intake (p<0.001).
“A comparison of participants who at year 8 maintained the ≥10% loss versus gained above baseline weight revealed that maintainers reported (at year 8) a higher activity-related energy expenditure (1471.9±121.1 vs. 799.9±100.9 kcal/week, p<0.001) and a greater number of weeks (in the prior year) reducing their calorie and fat intake (both p values <0.001; see Table 4).”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataOf 825 ILI participants who lost ≥10% at year 1 and qualified for analysis at year 8, 39.3% achieved ≥10% loss at year 8, 25.8% lost 5 to <10%, 20.7% lost 0 to <5%, and 14.2% gained above baseline.
“Of these 825 participants, 324 (39.3%) achieved a ≥10% loss at year 8, 213 (25.8%) a loss of 5 to <10%, 171 (20.7%) a loss of 0 to <5%, and 117 (14.2%) gained above their baseline weight.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataWeight maintainers were more likely than full regainers to weigh themselves daily or more often (47.8% vs. 28.4%) and weekly or more (82.4% vs. 69.8%) (both p<0.001).
“Weight maintainers also were more likely than full regainers to weigh themselves daily or more often (47.8% vs. 28.4%), as well as weekly or more (82.4% vs. 69.8%) (both ps<0.001).”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataThe odds of achieving ≥10% weight loss at year 8 were 2.3 times greater for participants who lost ≥10% at year 1 compared with those who lost 5 to <10%, and 3.9 times greater compared with those who lost <5% at year 1.
“The odds of achieving a ≥10% weight loss at year 8 were 2.3 (95% CI: 1.83, 2.97) times greater for participants who at year 1 lost ≥10%, compared to those who lost 5 to <10%, and 3.9 (95% CI: 2.99, 5.15) times greater compared to those who lost <5% at year 1.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataThe odds of achieving ≥5% weight loss at year 8 were 2.1 times greater for participants who lost ≥10% at year 1 compared with those who lost 5 to <10%, and 3.9 times greater compared with those who lost <5% at year 1.
“The odds of achieving ≥5% loss at year 8 were 2.1 (95% CI: 1.70, 2.64) times greater for participants who at 1 year lost ≥10%, compared to those who lost 5 to <10%, and 3.9 (95% CI: 3.10, 4.92) times greater compared to participants who lost <5% at year 1.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataAt all subsequent assessments, ILI participants significantly increased the number of weeks they reported exercising, reducing calorie and fat intake, and using meal replacements compared with DSE.
“at all subsequent assessments, ILI participants, compared with DSE, significantly increased the number of weeks in which they reported exercising, reducing their calorie and fat intake, and using meal replacements (see Table 3).”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataAt year 8, ILI participants lost a mean of 4.7% of initial weight, while DSE participants lost 2.1% (p<0.001).
“At year 8, ILI participants lost 4.7±0.2% of initial weight, compared with 2.1±0.2% for DSE (p<0.001).”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataOlder DSE participants lost more weight than younger DSE participants, with the greatest difference (1.9%) at year 8.
“Older DSE participants lost more weight than their younger counterparts, with the greatest difference (1.9%) between age groups occurring at year 8.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataIn ILI participants, reported energy expenditure more than doubled in the first year (1737.8 kcal/week) but declined in later years.
“Reported energy expenditure more than doubled in ILI participants the first year (1737.8±47.6 kcal/week) but declined in subsequent years.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataAt years 1, 4, and 8, significantly more ILI than DSE participants reported measuring their body weight weekly or more often, as well as daily or more often.
“At years 1, 4, and 8, significantly more ILI than DSE participants also reported measuring their body weight weekly or more often, as well as daily or more often.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataNearly 36% of DSE participants achieved a ≥5% weight loss at year 8, compared with 13.3% at year 1.
“Nearly 36% of DSE participants achieved a ≥5% weight loss at year 8, compared with 13.3% at year 1.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataAt year 1, ILI participants lost a mean of 8.5% of initial weight, while DSE participants lost 0.6% (p<0.001).
“At year 1, ILI participants lost a mean (±SE) of 8.5±0.2% of initial weight, compared with 0.6±0.2% for DSE (p<0.001; see Figure 2).”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
Study design and conductown dataWeight-change analyses adjusted for baseline weight, clinical center, and treatment arm.
“Differences between the DSE and ILI groups in changes in weight over the 8 years were analyzed using a mixed effects analysis of covariance, which included baseline weight, clinical center, and treatment arm.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim. May combine two claims.
Study design and conductown dataWeight was measured annually by certified staff who were unaware of the participants' intervention assignment.
“Weight was measured at baseline and annually thereafter with a digital scale (model BWB-800; Tanita, Willobrook, IL), by certified staff who were masked to intervention assignment.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim. May combine two claims.
Study design and conductown dataThe main analyses followed the intention-to-treat principle, analyzing participants by assigned group and including all follow-up data.
“The analyses followed the intention-to-treat principle in which participants were grouped according to intervention assignment, regardless of adherence, and all follow-up data were included.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
Study design and conductown dataParticipants were assigned to ILI or DSE by random allocation with equal probability.
“Those who remained eligible were randomly assigned, with equal probability, to ILI or DSE.”
Quote in the paperSubstantial claimMay combine two claims.
Interpretationown dataThe lifestyle intervention in Look AHEAD remained effective across 8 years for both sexes and for a racially and ethnically diverse group.
“Look AHEAD’s lifestyle intervention was effective over 8 years in both men and women and across an ethnically and racially diverse population.”
Quote in the paperSubstantial claimMay combine two claims.
Interpretationown dataThe intensive lifestyle intervention yielded weight loss of at least 5% at year 8 in half of the participants with type 2 diabetes, a degree considered clinically meaningful.
“Look AHEAD’s ILI produced clinically meaningful weight loss (≥5%) at year 8 in 50% of patients with type 2 diabetes and can be used to manage other obesity-related co-morbid conditions.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
InterpretationcitationWeight loss among DSE participants might have been unintentional, possibly reflecting aging or illness such as diabetes.
“Their weight loss also could have been unintentional39 and reflect the effects of aging40 or illness39 (including diabetes36), as discussed with weight loss in older ILI participants.”
Quote in the paperNot a substantial claim0 of 3 sources checked
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the Look AHEAD trial, participants who remained engaged achieved an average 6% weight loss at eight years compared with 2% in the usual care arm.
“participants who remained engaged achieved an average 6% weight loss at eight years compared with 2% in the usual care arm”
From Weight maintenance after discontinuation of GLP-1 therapies (2026) · cites this paper as [53]
The Abstract Results and Discussion report an average 4.7% weight loss at eight years in the intensive lifestyle group, compared with 2.1% in the usual-care group. The roughly 2% usual-care figure is supported, but these passages do not report a 6% average for participants who remained engaged. (LLM, conf=0.88)
Experimental — accuracy not yet measuredStructured lifestyle modification programs can be effective and feasible to help achieve a 5%-10% weight reduction and maintain a healthy body weight for many people.
“Although all causes and contributors of obesity are not within an individual's control, structured lifestyle modification programs can be effective and feasible to help achieve a 5%–10% weight reduction and maintain a healthy body weight for many people [91, 92, 93].”
From Nutritional priorities to support <scp>GLP</scp> ‐1 therapy for obesity: A joint Advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society (2025) · cites this paper as [93]
The Discussion reports that, among overweight or obese adults with type 2 diabetes, 50% of intervention participants had lost at least 5% of their initial weight after eight years, and 26.9% had lost at least 10%. It supports sustained, clinically meaningful weight loss from a structured program, but does not establish that participants attained or maintained a healthy body weight, or that the results apply to people generally. (LLM, conf=0.87)
Experimental — accuracy not yet measuredIn Look AHEAD, participants achieved an initial weight loss of 8.6% at 1 year (vs. 0.7% in control) which declined to 6.0% (vs. 3.5% in control) by the end of the study (median follow-up 9.6 years).
“participants achieved an initial weight loss of 8.6% at 1 year (vs. 0.7% in the control group) which declined to 6.0% (vs. 3.5% in the control group) by the end of the study (median follow-up: 9.6 years)”
From Weight maintenance after discontinuation of GLP-1 therapies (2026) · cites this paper as [53]
The Results (Weight loss; page unavailable) support substantial year-1 loss followed by some regain: the intervention group lost 8.5% at year 1 (8.6% when bariatric-surgery participants were included), versus 0.6% in the control group. At year 8, however, the paper reports 4.7% versus 2.1% (or 5.3% versus 2.7% with those participants included), not 6.0% versus 3.5%. The Methods (Statistical Analyses; page unavailable) say this analysis covers eight years, not a median 9.6-year follow-up. (LLM, conf=0.90)
Experimental — accuracy not yet measuredLifestyle modification remains a central component of weight management, but its effectiveness for sustaining clinically meaningful weight loss, particularly in the absence of continued pharmacotherapy, is limited.
“Lifestyle modification remains a central component of weight management but its effectiveness for sustaining clinically meaningful weight loss, particularly in the absence of continued pharmacotherapy, is limited.”
From Weight maintenance after discontinuation of GLP-1 therapies (2026) · cites this paper as [53]
The Discussion reports limits to maintenance: average weight loss declined after year 1, and only 50% of intensive-lifestyle participants had lost at least 5% at year 8. But it also describes sustained clinically meaningful loss as achievable with continued lifestyle support and offers no finding specifically about outcomes without continued pharmacotherapy. (LLM, conf=0.86)
Experimental — accuracy not yet measuredIntegrating dietary modification, structured exercise, and behavioral counseling achieves greater adherence and durability than any single component alone.
“Evidence from long-term lifestyle programs demonstrates that integrating dietary modification, structured exercise, and behavioral counseling achieves greater adherence and durability than any single component alone.53,86”
From Weight maintenance after discontinuation of GLP-1 therapies (2026) · cites this paper as [53]
The Interventions section describes a program combining dietary changes, physical activity, and lifestyle counseling. The Results section reports greater practice of weight-control behaviors in that group than in the education group, and the Discussion reports greater weight loss at eight years. The study did not compare the combined program with each component alone, so it cannot establish the claimed advantage over any single component. (LLM, conf=0.88)
Experimental — accuracy not yet measured
Older individuals seeking to lose weight may be at higher risk of excessive muscle loss and risk of falls and fracture with weight loss because muscle mass decreases with age.
“These considerations are even more important in older individuals seeking to lose weight because muscle mass decreases with age (potentially leading to sarcopenia); therefore, older individuals may be at higher risk of excessive muscle loss and risk of falls and fracture with weight loss [68].”
From Nutritional considerations with antiobesity medications (2024) · cites this paper as [68]
The Results section on weight loss by demographic characteristics reports that older participants lost more weight than younger participants, but it does not address muscle mass or injury risk. Searches for sarcopenia, muscle loss, falls, and fractures found no passage in our copy supporting the attributed explanation or risks; page numbers were not available. (LLM, conf=0.76)
Experimental — accuracy not yet measuredStructured lifestyle modification programs can be effective and feasible to help achieve a 5-10% weight reduction and maintain a healthy body weight for many people.
“While all causes and contributors of obesity are not within an individual's control, structured lifestyle modification programs can be effective and feasible to help achieve a 5–10 % weight reduction and maintain a healthy body weight for many people [[85], [86], [87]].”
Structured lifestyle modification programs can be effective and feasible to help achieve a 5%-10% weight reduction and maintain a healthy body weight for many people.
“Although all causes and contributors of obesity are not within an individual’s control, structured lifestyle modification programs can be effective and feasible to help achieve a 5%–10% weight reduction and maintain a healthy body weight for many people [[91], [92], [93]].”
The Look AHEAD trial provides the longest-term evidence of the effect of an intensive lifestyle intervention in overweight and obese adults with T2D; at 8 years, 50.3% in the intervention group versus 35.7% in the usual care group lost ≥5% of body weight, and 26.9% versus 17.2% lost ≥10% of body weight.
“The Look AHEAD (Action for Health in Diabetes) trial provides the longest-term evidence of the effect of an intensive lifestyle intervention in overweight and obese adults with T2D.The curriculum was modified from the DPP and included structured meal plans and moderate exercise up to 200 min/week.At 8 years, 50.3% in the intervention group versus 35.7% in the usual care group lost $5% of body”
From The CardioMetabolic Health Alliance (2015) · cites this paper as [84]
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“However, despite recent improvements in the success rates of behavioural weight loss interventions (5,6), obesity remains difficult to prevent and treat (7).”
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Self-citationEndoscopic bariatric therapies
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Bile acids and bariatric surgery
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Current status of intragastric balloon for obesity treatment
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“%) and rapid (over 3 – 4 months) is associated with significant bone loss [67], while more moderate and slower weight reduction may better preserve bone mass [68].”
Long-Term Weight Loss Strategies for Obesity
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“…demonstrated that meaningful weight loss can be achieved with lifestyle modification; specifically, they found that volunteers who were randomized to a diet and exercise regimen reduced their body weight by 6% and 5.6 kgs after a median of 9.6 years and a mean of 2.8 years, respectively (74,75).”
InfluentialEfficacy and Safety of Tirzepatide in Type 2 Diabetes and Obesity Management
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Nutritional considerations with antiobesity medications
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“For example, the Diabetes Prevention Program is known to reduce the risk of progression to diabetes and is covered by major payers, but has not been meaning-fully scaled due to regulatory and implementation barriers [ 105, 106”
An evidence-based guide for obesity treatment in primary care.
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Fostering multiple healthy lifestyle behaviors for primary prevention of cancer.
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Tirzepatide for the treatment of adults with type 2 diabetes: An endocrine perspective
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Is there an optimal diet for weight management and metabolic health?
Thom, G., & Lean, M. (2017) · Gastroenterology · doi:10.1053/j.gastro.2017.01.056 · Cited by 119 · see citing works
“Data from Look AHEAD show that rapid early weight loss is the strongest predictor of long-term success (71).”
MethodInfluentialObesity and cardiovascular disease: an ESC clinical consensus statement
Koskinas, K. C., Craenenbroeck, E. M. V., Antoniades, C. A., Blüher, M., Gorter, T. M., Hanssen, H., Marx, N., McDonagh, T. A., Mingrone, G., Rosengren, A., et al. (2024) · European Journal of Preventive Cardiology · doi:10.1093/eurjpc/zwae279 · Cited by 132 · see citing works
6. Obesity Management for the Treatment of Type 2 Diabetes
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The Interplay between Obesity and Inflammation
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“Surgical interventions for weight loss are another viable option, especially considering that a significant proportion of individuals who have achieved the ideal weight through a diet and physical activity, alone or in combination, are unable to sustain their weight loss [303].”
BackgroundDiabetes and Cardiovascular Disease: an Update
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Weight regaining: From statistics and behaviors to physiology and metabolism
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Perspective: Randomized Controlled Trials Are Not a Panacea for Diet-Related Research
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The Low-Carbohydrate Diet: Short-Term Metabolic Efficacy Versus Longer-Term Limitations
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“With antecedents of the PREDIMED (Prevención con Dieta Mediterránea) study on the benefits of the Mediterranean diet [81] and the Look AHEAD (Action for Health in Diabetes) study on the benefits of the LFD (as part of an intensive lifestyle intervention) [82], the execution of a large-scale study on the LCD is well ov…”
MethodCardiovascular Effects of Intensive Lifestyle Intervention in Type 2 Diabetes
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“The remaining trials considered spouse involvement [26], modification of the home environment [28], telephone or mail contact [30], and varying monetary contracts [29].”
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Targeting the incretin system in obesity and type 2 diabetes mellitus
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Adiposopathy, “Sick Fat,” Ockham’s Razor, and Resolution of the Obesity Paradox
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Managing temptation in obesity treatment: A neurobehavioral model of intervention strategies
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“Motivational Interviewing (MI) [24] is the best-established motivational intervention, but trials that include MI to support weight loss or physical activity typically achieve only modest effects [15, 25, 26].”
Depression and Suicide After Bariatric Surgery
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Health Benefits of Long-Term Weight-Loss Maintenance
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Weight maintenance: challenges, tools and strategies for primary care physicians
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Weight Loss Randomized Intervention Trials in Female Cancer Survivors
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What is the BMI threshold for open ventral hernia repair?
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Gregg, E. W., Chen, H., Bancks, M. P., Manalac, R., Maruthur, N., Munshi, M., Wing, R., & for the Look AHEAD Research Group (2024) · Diabetologia · doi:10.1007/s00125-023-06048-6 · Cited by 87 · see citing works
“The HR and 95% CI values are shown at the top of 46% and 36% among intervention participants at 1 and 2 years, respectively (compared with 4% and 3% of con-trol participants), accompanying 9.5% and 5.3% net weight losses, respectively, after 1 and 2 years [5, 25].”
ResultInfluential
- Authors
- The Look AHEAD Research Group
- Affiliations
- University of Pennsylvania (US)
- Corresponding author
- The Look AHEAD Research Group
- Venue
- Obesity
- Publisher
- Wiley
- Published
- 2014-01
- Volume
- 22
- Issue
- 1
- Pages
- 5-13
- ISSN
- 1930-7381 (ISSN-L)
- 1930-739X
- PMC
- PMC3904491
- OpenAlex
- W4234995814
- Semantic Scholar
- b883e5eccf1ab2379def025107e8d89cfb879c2f
- Cited by
- 842
- References
- 42
- Citations by year
- 2026: 57 · 2025: 56 · 2024: 75 · 2023: 65 · 2022: 70 · 2021: 75 · 2020: 120 · 2019: 70 · 2018: 58 · 2017: 61 · 2016: 53 · 2015: 58 · 2014: 23
- FWCI
- 35.14
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Obesity (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (DK57136, DK57149, DK56990, DK57177, DK57171, DK57151, DK57182, DK57131, DK57002, DK57078, DK57154)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Education
- Keywords
- intensive lifestyle intervention, weight loss, type 2 diabetes, diabetes support and education, weight control behaviors, weight regain, cardiovascular morbidity, long-term weight loss maintenance
- MeSH terms
- Aged, Energy Intake, Diabetes Mellitus, Type 2, Female, Follow-Up Studies, Health Education, Humans, Life Style, Male, Middle Aged, Motor Activity, Obesity, Weight Loss, Health Behavior, Body Mass Index, Logistic Models, Treatment Outcome, Overweight, Weight Reduction Programs
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