The vegan diets are first and foremost about animal welfare rather than human health so you do need to factor that into any info on diet from vegan sources. Chicken is an animal, Barnard is a vegan - hence read into that what you will. Personally I find the low carb/healthy fats diet to be very effective in controlling diabetes but apparently some people have success with high carb low fat but I know I could not bear to eat what they do - fats and oils are why gives food it's taste. This fact is why the many 'low fat' processed foods are full of sugar because taking out the fats takes out the taste and they have to make it palatable somehow. Also for me any carbs skyrocket my blood sugar and I'd rather avoid the hefty peaks and troughs. But if you like the idea of low fat then give it a try. Either diet is better than the Eatwell plate or Standard American diet.