High-Dose Strawberry Supplementation May Help Improve Fasting Insulin Levels
A recent study has found that supplementation with a high dose of freeze-dried strawberries may help improve fasting insulin and insulin resistance in people with one or more features of metabolic syndrome.
Participants in the study included 33 adults with one or more features of metabolic syndrome, including abdominal adiposity, high BMI, and elevated LDL cholesterol. Participants completed three 4-week interventions separated by a one-week washout period. During the interventions they were given 13 grams of freeze-dried strawberry powder (low dose), 32 grams of freeze-dried strawberry powder (high dose), or a placebo. They were told to not consume other berries.
The researchers used blood samples taken at baseline and at the end of each intervention to assess anthropometric measurements, blood pressure, serum glucose, and lipid profiles.
During the high-dose intervention, participants saw significant reductions in fasting glucose and improvements in insulin resistance compared to the low-dose and placebo interventions. They also saw reductions in LDL cholesterol during the high-dose intervention.
The study was conducted by researchers from the University of Nevada. It was published online ahead of print April 23, 2021 in the journal Nutrients.