Diabetes Forecast

Dieting Two-Days Per Week Can Lower A1C

By Miriam E. Tucker , ,


If following a reduced-calorie meal plan every day feels too restrictive, there may be an alternative. In a study of 137 adults with type 2 diabetes, half were asked to consume just 500 to 600 calories for two days of the week, with no calorie restrictions the other five days. The other half were assigned a daily 1,200- to 1,500-calorie diet. After one year, participants in both groups saw similar reductions in their A1C, a measure of glucose control over eight to 10 weeks. Those who dieted two days a week dropped their A1Cs by an average of 0.3 percent, and daily dieters lowered theirs by 0.5 percent—not a significant difference. Both groups also lost around the same amount of weight: 14 pounds for those on the two-day diet versus 10 pounds for the daily dieters. And because the amount of medication (including insulin) participants took was adjusted for the diets, low blood glucose rates also didn’t differ. If you take insulin or sulfonylureas, talk with your doctor about dose adjustments before trying this.
Source: JAMA Network Open, published online July 20, 2018



Take the Type 2
Diabetes Risk Test