Fifteen obese diabetes patients were put on a high-carbohydrate diet to serve as the control group. Their diet consisting of the same calories for men and women included approximately 60 percent carbohydrates, 15 percent protein and 25 percent fat. Positive effects on the glucose levels were seen very quickly in the group following the low-carb plan. After six months, a marked reduction in body weight of patients in the low-carb diet group was also observed, and this remained one year later. (10)
Low-carb diets may improve high-density lipoprotein (HDL) cholesterol and triglyceride values slightly more than do moderate-carb diets. That may be due not only to how many carbs you eat but also to the quality of your other food choices. Lean protein (fish, poultry, legumes), healthy fats (monounsaturated and polyunsaturated) and unprocessed carbs — such as whole grains, legumes, vegetables, fruits and low-fat dairy products — are generally healthier choices.