This research aimed to examine both the benefits and the drawbacks of following a vegan diet. More specifically, however, its purpose was to point out the biggest flaws in the new trend. It dispelled the popular myth of rapid weight loss through a study comparing weight loss on different diets. Additionally, I examined the deficiencies most commonly found in people who are vegan and their effects on the body. Primarily, the vitamin D deficiency that can cause bone deterioration and even rickets. In all, this paper argued against the practice of veganism.