Cited by 34Ovarian function and disordersDiabetes, Cardiovascular Risks, and LipoproteinsDiet, Metabolism, and Disease

The effect of low glycemic index diet on the reproductive and clinical profile in women with polycystic ovarian syndrome: A systematic review and meta-analysis

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Saadati, Najmieh, Haidari, Fatemeh, Barati, Mojgan, Nikbakht, Roshan, Mirmomeni, Golshan, Rahim, Fakher·2021·Heliyon

Abstract

Background Treatment for polycystic ovary syndrome (PCOS) usually initiates with a series of lifestyle modifications such as diet, weight loss, and exercise. Aims We, therefore, conducted this meta-analysis to systematically review and evaluate the possible benefits of LGD on a range of anthropometric, clinical, and biochemical parameters in women with PCOS. Methods We performed a systematic search through major indexing databases, including Scopus, Pubmed/Medline, ISI web of science, Embase, Cochrane central, and CINAHL (1966–April 30, 2021) using key concepts of PCOS. Results Of 935 initial publications, 542 remain after duplicates removal. Then, 141 records were removed at the title and abstract screening level. After excluding 392 literatures, we finally included 8 articles. The final selected studies included 412 overweight and obese individuals with PCOS (207 cases in LGID group and 205 patients in comparators) with a mean age of 21–32 years. Measured emotional health (3 studies, 132 participants, SMD: -1.97; 95%CI:-3.54, -0.40, P = 0.01, I 2 = 89%) and body hair (3 studies, 132 participants, SMD: -0.40; 95%CI:-0.46, -0.35, P < 0.0001, I 2 = 0%), were found to be significantly lower in women in LGD vs control diet groups. Moreover, infertility (3 studies, 132 participants, SMD: 1.45; 95%CI: 0.30, 2.61, P = 0.01, I 2 = 79%) was significantly higher in women in LGD vs control diet groups. Conclusion The present meta-analysis has shown that LGD may play a significant role in reducing the risk and improving the clinical and biochemical features of PCOS. So far the evidences for choosing the best dietary modalities for PCOS are not strong to make a definite recommendation.

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  • Lower glycemic index plays a significant role in reducing the risk and improving the clinical and biochemical features of PCOS.

    “In contrast a systematic search through major indexing databases, including Scopus, Pubmed/Medline, ISI web of science, Embase, Cochrane central, and CINAHL (1966–30 April 2021) shows that lower glycemic index play a significant role in reducing the risk and improving the clinical and biochemical features of PCOS [25].”

    From Dietary Patterns and Metabolic and Hormonal Parameters in Women with Suspected PCOS (2025) · cites this paper as [25]

    The Discussion and Conclusion (page numbers not provided) link a low-glycemic diet to reduced risk and improved clinical and biochemical features of PCOS. The citing sentence states this as a definite effect, whereas the paper says the diet 'may' or 'can' play this role and cautions that evidence is not strong enough for definite dietary recommendations. (LLM, conf=0.84)

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  1. [1]Ndefo U.A. Eaton A. Green M.R. Polycystic ovary syndrome: a review of treatment options with a focus on pharmacological approaches P t 38 6 2013 336 355 23946629 PMC3737989
  2. [2]Osibogun O. Ogunmoroti O. Michos E.D. Polycystic ovary syndrome and cardiometabolic risk: opportunities for cardiovascular disease prevention Trends in Cardiovascular Medicine 30 7 2020 399 404 31519403
  3. [3]Fauser B.C.J.M. Consensus on women’s health aspects of polycystic ovary syndrome (PCOS): the Amsterdam ESHRE/ASRM-Sponsored 3rd PCOS Consensus Workshop Group Fertility and Sterility 97 1 2012 28 38 e25 22153789
  4. [4]Tzalazidis R. Oinonen K.A. Continuum of symptoms in polycystic ovary syndrome (PCOS): links with sexual behavior and unrestricted sociosexuality J Sex Res 58 4 2021 532 544 32077320
  5. [5]Scaruffi E. Personality and psychiatric disorders in women affected by polycystic ovary syndrome Frontiers in endocrinology 5 2014 185 25429283 PMC4228916
  6. [6]Rosenfield R.L. Ehrmann D.A. The pathogenesis of polycystic ovary syndrome (PCOS): the hypothesis of PCOS as functional ovarian hyperandrogenism revisited Endocrine reviews 37 5 2016 467 520 27459230 PMC5045492
  7. [7]Jalilian A. Prevalence of polycystic ovary syndrome and its associated complications in Iranian women: a meta-analysis Iranian journal of reproductive medicine 13 10 2015 591 604 26644787 PMC4668346
  8. [8]Barthelmess E.K. Naz R.K. Polycystic ovary syndrome: current status and future perspective Frontiers in bioscience (Elite edition) 6 2014 104 119 24389146 PMC4341818
  9. [10]Lim S.S. Lifestyle changes in women with polycystic ovary syndrome The Cochrane database of systematic reviews 3 3 2019 CD007506 30921477 PMC6438659
  10. [11]Ojo O. The effect of dietary glycaemic index on glycaemia in patients with type 2 diabetes: a systematic review and meta-analysis of randomized controlled trials Nutrients 10 3 2018 373 PMC5872791 29562676
  11. [12]Noli S.A. Dietary carbohydrate intake, dietary glycemic load and outcomes of in vitro fertilization: findings from an observational Italian cohort study Nutrients 12 6 2020 1568 PMC7352402 32481483
  12. [13]Collins G.G. Rossi B.V. The impact of lifestyle modifications, diet, and vitamin supplementation on natural fertility Fertility Research and Practice 1 1 2015 11 28620516 PMC5424364
  13. [14]Rhodes E.T. Effects of a low-glycemic load diet in overweight and obese pregnant women: a pilot randomized controlled trial The American journal of clinical nutrition 92 6 2010 1306 1315 20962162 PMC2980957
  14. [15]Goletzke J. Effect of a low-glycemic load diet intervention on maternal and pregnancy outcomes in obese pregnant women Nutrients 13 2021 748 33652705 PMC7996780
  15. [17]Heshmati J. The effects of supplementation with chromium on insulin resistance indices in women with polycystic ovarian syndrome: a systematic review and meta-analysis of randomized clinical trials Horm Metab Res 50 3 2018 193 200 29523006
  16. [18]Łagowska K. Bajerska J. Jamka M. The role of vitamin D oral supplementation in insulin resistance in women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials Nutrients 10 11 2018 PMC6266903 30400199
  17. [19]Porchia L.M. Diets with lower carbohydrate concentrations improve insulin sensitivity in women with polycystic ovary syndrome: a meta-analysis Eur J Obstet Gynecol Reprod Biol 248 2020 110 117 32200247
  18. [20]Sadeghi A. Effect of omega-3 fatty acids supplementation on insulin resistance in women with polycystic ovary syndrome: meta-analysis of randomized controlled trials Diabetes Metab Syndr 11 2 2017 157 162 27484441
  19. [22]Abdolahian S. Effect of lifestyle modifications on anthropometric, clinical, and biochemical parameters in adolescent girls with polycystic ovary syndrome: a systematic review and meta-analysis BMC Endocr Disord 20 1 2020 71 32429890 PMC7236342
  20. [23]Akbari M. The effects of vitamin D supplementation on biomarkers of inflammation and oxidative stress among women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials Horm Metab Res 50 4 2018 271 279 29475212
  21. [25]Azadi-Yazdi M. The effect of vitamin D supplementation on the androgenic profile in patients with polycystic ovary syndrome: a systematic review and meta-analysis of clinical trials Horm Metab Res 49 3 2017 174 179 28351084
  22. [26]Carmina E. Female pattern hair loss and androgen excess: a report from the multidisciplinary androgen excess and PCOS committee J Clin Endocrinol Metab 104 7 2019 2875 2891 30785992
  23. [27]Moher D. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement PLoS Med 6 7 2009 e1000097 19621072 PMC2707599
  24. [28]Higgins J.P.T. The Cochrane Collaboration’s tool for assessing risk of bias in randomised trials BMJ 343 2011 d5928 22008217 PMC3196245
  25. [31]Wan X. Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range BMC Medical Research Methodology 14 1 2014 135 25524443 PMC4383202
  26. [33]Asemi Z. Effects of DASH diet on lipid profiles and biomarkers of oxidative stress in overweight and obese women with polycystic ovary syndrome: a randomized clinical trial Nutrition 30 11-12 2014 1287 1293 25194966
  27. [35]Marsh K.A. Effect of a low glycemic index compared with a conventional healthy diet on polycystic ovary syndrome Am J Clin Nutr 92 1 2010 83 92 20484445
  28. [38]Sordia-Hernández L.H. Effect of a low glycemic diet in patients with polycystic ovary syndrome and anovulation - a randomized controlled trial Clin Exp Obstet Gynecol 43 4 2016 555 559 29734548
  29. [39]Turner-McGrievy G.M. Low glycemic index vegan or low-calorie weight loss diets for women with polycystic ovary syndrome: a randomized controlled feasibility study Nutr Res 34 6 2014 552 558 25026923
  30. [41]workshop, R.E.A.-S.P.c. and group. Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS) Hum Reprod 19 1 2004 41 47 14688154
  31. [42]Ilagan M. The modified ferriman-gallwey score and hirsutism among Filipino women Endocrinol Metab (Seoul) 34 4 2019 374 381 31884737 PMC6935772
  32. [43]Cussons A.J. Polycystic ovarian syndrome: marked differences between endocrinologists and gynaecologists in diagnosis and management Clin Endocrinol (Oxf) 62 3 2005 289 295 15730409
  33. [44]Abdalla M.A. A review of therapeutic options for managing the metabolic aspects of polycystic ovary syndrome Ther Adv Endocrinol Metab 11 2020 2042018820938305 PMC7338645 32670541
  34. [45]Morales A.J. Insulin, somatotropic, and luteinizing hormone axes in lean and obese women with polycystic ovary syndrome: common and distinct features J Clin Endocrinol Metab 81 8 1996 2854 2864 8768842
  35. [46]Diamanti-Kandarakis E. Dunaif A. Insulin resistance and the polycystic ovary syndrome revisited: an update on mechanisms and implications Endocrine reviews 33 6 2012 981 1030 23065822 PMC5393155
  36. [47]Rojas J. Polycystic ovary syndrome, insulin resistance, and obesity: navigating the pathophysiologic labyrinth International journal of reproductive medicine 2014 2014 719050 25763405 PMC4334071
  37. [48]Wang E.T. Polycystic ovary syndrome and risk for long-term diabetes and dyslipidemia Obstetrics and gynecology 117 1 2011 6 13 21173640 PMC3060760
  38. [49]Chiofalo B. Fasting as possible complementary approach for polycystic ovary syndrome: hope or hype? Med Hypotheses 105 2017 1 3 28735644
  39. [50]Farsinejad-Marj M. Clinical and metabolic responses to magnesium supplementation in women with polycystic ovary syndrome Biol Trace Elem Res 196 2 2020 349 358 31960275
  40. [51]Geier L.M. Bekx M.T. Connor E.L. Factors contributing to initial weight loss among adolescents with polycystic ovary syndrome J Pediatr Adolesc Gynecol 25 6 2012 367 370 23089571
  41. [52]Hernández I. Hypothalamic dopaminergic tone and prolactin bioactivity in women with polycystic ovary syndrome Arch Med Res 31 2 2000 216 222 10880731
  42. [53]Pasquali R. Gambineri A. Role of changes in dietary habits in polycystic ovary syndrome Reprod Biomed Online 8 4 2004 431 439 15149567
  43. [54]Shahdadian F. Association between major dietary patterns and polycystic ovary syndrome: evidence from a case-control study Appl Physiol Nutr Metab 44 1 2019 52 58 29969571
  44. [55]Stein K. Polycystic ovarian syndrome: what it is and why registered dietitians need to know J Am Diet Assoc 106 11 2006 1738 1741 17081819
  45. [56]Mavropoulos J.C. The effects of a low-carbohydrate, ketogenic diet on the polycystic ovary syndrome: a pilot study Nutr Metab (Lond) 2 2005 35 16359551 PMC1334192
  46. [57]Wang C. Low-fat high-fiber diet decreased serum and urine androgens in men J Clin Endocrinol Metab 90 6 2005 3550 3559 15741266
  47. [58]Pereira E.V. Costa Jde A. Alfenas Rde C. Effect of glycemic index on obesity control Arch Endocrinol Metab 59 3 2015 245 251 26154093
  48. [59]Brand-Miller J.C. Glycemic index and obesity Am J Clin Nutr 76 1 2002 281s 285s 12081852
  49. [60]Liepa G.U. Sengupta A. Karsies D. Polycystic ovary syndrome (PCOS) and other androgen excess-related conditions: can changes in dietary intake make a difference? Nutr Clin Pract 23 1 2008 63 71 18203965
  50. [62]Kazemi M. Effects of dietary glycemic index and glycemic load on cardiometabolic and reproductive profiles in women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials Adv Nutr 12 1 2021 161 178 32805007 PMC7850057
  51. [63]Dennett C.C. Simon J. The role of polycystic ovary syndrome in reproductive and metabolic health: overview and approaches for treatment Diabetes spectrum: a publication of the American Diabetes Association 28 2 2015 116 120 25987810 PMC4433074
  52. [64]Sawant S. Bhide P. Fertility treatment Options for women with polycystic ovary syndrome. Clinical medicine insights Reproductive health 13 2019 1179558119890867 PMC6935873 31908561

Cited by

Sorted by citations

Authors
Saadati, N., Haidari, F., Barati, M., Nikbakht, R., Mirmomeni, G., & Rahim, F.
Affiliations
Ahvaz Jundishapur University of Medical Sciences (IR)
Corresponding author
Rahim, Fakher
Venue
Heliyon
Publisher
Elsevier BV
Published
2021-11
Volume
7
Issue
11
Pages
e08338
ISSN
2405-8440 (ISSN-L)
OpenAlex
W3212382123
Cited by
34
References
11
Citations by year
2026: 9 · 2025: 10 · 2024: 6 · 2023: 7 · 2022: 1 · 2021: 1
FWCI
0.62
Type
journal article
Language
en
Open access
Locations
  • Heliyon (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Kocaeli Üniversitesi - AVESİS (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Ahvaz Jundishapur University of Medical Sciences (FIRC-0017)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
Keywords
polycystic ovary syndrome, low glycemic index diet, infertility, hirsutism, emotional well-being, obesity, overweight women, lifestyle modification, dietary intervention

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