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Effect of Blueberry Consumption on Cardiometabolic Health Parameters in Men with Type 2 Diabetes: An 8-Week,

Kim S Stote1, Margaret M Wilson2, Deborah Hallenbeck3

  • 1Department of Research, Stratton VA Medical Center, Albany, NY, USA.

Current Developments in Nutrition
|April 28, 2020
PubMed
Abstract

Insights

Daily consumption of blueberries may improve cardiometabolic health in men with type 2 diabetes. This study found significant reductions in hemoglobin A1c, fructosamine, and triglycerides in participants who consumed blueberries.

Area of Science:

  • Nutritional Science
  • Cardiovascular Health
  • Diabetes Management

Background:

  • Blueberries are rich in anthocyanins, potent polyphenols linked to reduced type 2 diabetes risk.
  • Limited human trials have explored blueberry's health impacts in individuals with type 2 diabetes.

Purpose of the Study:

  • To investigate the effects of 8-week blueberry consumption on cardiometabolic parameters in men with type 2 diabetes.

Main Methods:

  • A double-blind, randomized controlled trial involving 52 US veteran men with type 2 diabetes.
  • Participants consumed 22g of freeze-dried blueberries or a placebo daily for 8 weeks.

Main Results:

  • Blueberry consumption significantly lowered hemoglobin A1c, fructosamine, triglycerides, aspartate transaminase, and alanine transaminase.
  • No significant differences were observed in fasting plasma glucose, insulin, cholesterol levels, C-reactive protein, blood pressure, or body weight.

Conclusions:

  • Eight weeks of daily blueberry intake may offer cardiometabolic benefits for men with type 2 diabetes.
  • Further research is warranted to confirm these findings and explore underlying mechanisms.
Keywords:
anthocyaninsblueberriesflavonoidspolyphenolstype 2 diabetes

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