2) Prevents type 2 diabetes:

People who follow a vegetarian diet have shown better diabetes control, lower insulin resistance, better insulin sensitivity, better HBA1C levels in months from going vegan, they managed to lose weight, have lower cholesterol levels, and felt better overall .
not only does it maintain diabetes under control but it also prevents it and lowers your chances of getting type 2 diabetes as you get older as it lowers the risk factors that contribute to the disease.