Some individuals are reporting negative health effects after following a vegan diet for a period of time, with one person stating it was the worst decision for their health after four years. Meanwhile, research on the topic is ongoing, with some studies examining the relationship between vegetarian and vegan diets and cancer risk, and others re-evaluating the impact of veganism on certain health outcomes. The experiences and choices of vegetarians and vegans are varied, with some opting to return to eating meat after a period of time, while others continue to follow a plant-based diet.