A Low-Carbohydrate as Compared with a Low-Fat Diet in Severe Obesity

Severely obese subjects with a high prevalence of diabetes or the metabolic syndrome lost more weight during six months on a carbohydrate-restricted diet than on a calorie- and fat-restricted diet,

A Palaeolithic diet improves glucose tolerance more than a Mediterranean-like diet in individuals with ischaemic heart disease.

A Palaeolithic diet may improve glucose tolerance independently of decreased waist circumference.

http://ajcn.nutrition.org/content/75/1/11.short

A low-fat, high-polysaccharide diet in overweight individuals with abnormal intermediary metabolism led to moderate weight loss and some improvement in serum cholesterol.

Stop eating when your stomach is 80 percent full to avoid weight gain. Eat the smallest meal of the day in the late afternoon or evening.
Eat mostly plants, especially beans. And eat meat rarely, in small portions of 3 to 4 ounces. Blue Zoners eat portions this size just five times a month, on average. Drink alcohol moderately and regularly, i.e. 1-2 glasses a day.

A low-fat vegan diet and a conventional diabetes diet in the treatment of type 2 diabetes: a randomized, controlled, 74-wk clinical trial. ND Barnard

Both diets were associated with sustained reductions in weight and plasma lipid concentrations