While veganism with a whole food, plant-based diet has huge health benefits, there are unmistakable nutritional deficiencies in pure veganism, but they are not what is commonly assumed, i.e., protein deficiency
The most obvious one is B12, and most vegans know that they must take a B12 supplement to correct this. But other less obvious common deficiencies include: Omega 3 fats DHA and EPA, iodine, zinc, calcium, choline, vitamin d3, and the essential amino acid lysine.
Therefore, while the vegan diet, of all the diets, may be the healthiest, it needs to be tweaked quite a bit for one to avoid these very specific deficiencies on a pure vegan diet, which all can have seriously negative impacts on one’s health.
Henry's Views 