Why do 84% of vegans quit?

The researchers say it's not entirely clear if people give up their meat-free diets more for social reasons or challenges related to the diet itself. The findings do illuminate some things that many lapsed vegetarians/vegans have in common, such as transitioning to the diet too quickly, not being involved socially with other veg folks, and not being able to address certain food cravings. According to Leber, relationships turned out to be a big factor, with a third of the former vegans/vegetarians reporting that they gave up the diet while living with a meat-eating partner. More than half of the former vegans/vegetarians had just one reason for taking up the diet - health. A third of the former vegans/vegetarians decided to transition to their meat-free diets over the course of just few days or weeks. They also found that a third of the former vegans/vegetarians reverted to their meat-eating ways within three months of their change of diet.