When people complain about vegan diets lacking in x, y, or z I always point out that our diets are culturally balanced, as well as being balanced by the addition of vitamins to staple foods. If we all became deficient in say, iron, we would start fortifying iron in our water, flour, salt, rice etc, while at the same time we would culturally move towards eating more black beans and spinach than we currently do. When an individual removes a food group from their diet, it's only reasonable that you will have to intentionally rebalance your diet in other places. This isn't a deficiency inherent in a vegan diet.
If you have to supplement a vitamin or mineral that's just part of your diet, so don't @ me with your natural=good nonsense.