25 Feb 2019 --- The increasingly popular flexitarian diet combines all the benefits of vegan, vegetarian and animal-based diets and may be best for most people, according to studies by Nestlé Research. Carried out in collaboration with the University of Hawaii Cancer Center, the studies found that the levels of macro and micronutrients in each meal were more important than the type of diet consumed, suggesting that a flexitarian or semi-vegetarian diet may be most beneficial for overall health.