There are mixed reviews on the issue of whether a vegan diet is healthy. It has been known to lower the risk of heart problems, diabetes and some cancers. Vegans also tend to be leaner than meat-eaters due to their lower calorie intake.
Although a vegan diet increases one's intake of fruits, vegetables and fiber, there are concerns about this way of eating. For example, women who are pregnant or nursing need to be sure they are getting enough calcium, iron, protein and vitamin B12 for the healthy development of their babies. These nutrients are often difficult to obtain through a plant-based diet alone.