Cited by 428Diet and metabolism studiesDiabetes Management and ResearchDietary Effects on Health

Effect of a High-Protein, Low-Carbohydrate Diet on Blood Glucose Control in People With Type 2 Diabetes

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Gannon, Mary C., Nuttall, Frank Q.·2004·Diabetes

Abstract

There has been interest in the effect of various types and amounts of dietary carbohydrates and proteins on blood glucose. On the basis of our previous data, we designed a high-protein/low-carbohydrate, weight-maintaining, nonketogenic diet. Its effect on glucose control in people with untreated type 2 diabetes was determined. We refer to this as a low-biologically-available-glucose (LoBAG) diet. Eight men were studied using a randomized 5-week crossover design with a 5-week washout period. The carbohydrate:protein:fat ratio of the control diet was 55:15:30. The test diet ratio was 20:30:50. Plasma and urinary β-hydroxybutyrate were similar on both diets. The mean 24-h integrated serum glucose at the end of the control and LoBAG diets was 198 and 126 mg/dl, respectively. The percentage of glycohemoglobin was 9.8 ± 0.5 and 7.6 ± 0.3, respectively. It was still decreasing at the end of the LoBAG diet. Thus, the final calculated glycohemoglobin was estimated to be ∼6.3–5.4%. Serum insulin was decreased, and plasma glucagon was increased. Serum cholesterol was unchanged. Thus, a LoBAG diet ingested for 5 weeks dramatically reduced the circulating glucose concentration in people with untreated type 2 diabetes. Potentially, this could be a patient-empowering way to ameliorate hyperglycemia without pharmacological intervention. The long-term effects of such a diet remain to be determined.

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Authors
Gannon, M. C., & Nuttall, F. Q.
Affiliations
University of Minnesota (US)
Venue
Diabetes
Published
2004-09-01
Volume
53
Issue
9
Pages
2375-2382
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2140156866
Cited by
428
References
29
Citations by year
2026: 3 · 2025: 12 · 2024: 15 · 2023: 10 · 2022: 15 · 2021: 28 · 2020: 70 · 2019: 18 · 2018: 23 · 2017: 20 · 2016: 13 · 2015: 18 · 2014: 12 · 2013: 19 · 2012: 24
FWCI
9.46
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
American Diabetes Association
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
Keywords
type 2 diabetes, high-protein low-carbohydrate diet, glycemic control, glycohemoglobin, serum insulin, plasma glucagon, beta-hydroxybutyrate, ketosis, hyperglycemia, dietary intervention
MeSH terms
Aged, Aged, 80 and over, Blood Glucose, Body Weight, Diabetes Mellitus, Type 2, Dietary Carbohydrates, Dietary Proteins, Glycated Hemoglobin, Humans, Ketones, Male, Middle Aged, Cross-Over Studies, 3-Hydroxybutyric Acid

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