 Like any other diet’s impact on diabetes, the most important factor is the resulting loss of overall fat mass.Both vegan and vegetarian diets have been shown to be beneficial for weight loss in comparison to the standard American diet.For type 2 diabetics, the focus of a vegetarian or vegan diet should be maintaining a level of caloric intake that results in fat loss, adequate protein consumption, adequate consumption of compounds that are most bio-available in animal products (i.e.