Value of Low-Glycemic Diets Questioned

Researchers studied 160 overweight adults randomized to four different diets (low-glycemic index (GI), low-carbohydrate; low-GI, high-carb; high-GI, low-carb; and high-GI, high-carb) for 5 weeks. Each diet was low in saturated fat and dairy products, and included lots of fruits and vegetables. Analysis of the data did not find any major benefit to the low-GI diets. Insulin sensitivity, systolic BP, LDL and HDL cholesterol levels remained the same in all groups. 

PositiveTip: An overall healthy lifestyle and dietary pattern is probably the most important factor in preventing cardiovascular disease.