It's weird that the article mentions supplements so often yet reads as if the author had never heard of them or considered their use to make up any deficiencies

It's weird that the article mentions supplements so often yet reads as if the author had never heard of them or considered their use to make up any deficiencies in a vegan/vegetarian diet. As someone diagnosed with a serious iron deficiency as a child that later went vegetarian, I never noticed an issue, however immediately noticed after taking creatine for work outs that my mental faculties improved. People just need to pay attention to their bodies and monds; most people would be better off if they did, not simply vegetarians.