> To my surprise, the experiment quickly became an illuminating failure. The regime was, after just a few days or so, much harder than I had expected. I felt unsettled, tired, and much of the time quite
cold, surprisingly (in February in Australia). Heartburn, headaches, inattention… it did not go well. On day 10, I decided to change plans, and add some dairy products to the diet for the middle third of the month. This transition was just as surprising as the previous one. Immediately I felt fine, with all those problems out of the picture. I felt better than fine, in fact – very sharp. Ten days after that, I resumed the near-vegan regime. The results were as discouraging as before, and I switched back. By the end of the month, I’d spent half of it mostly vegan and half as a vegetarian.
Even if I don't agree with the overall point of the article, this kind of honesty is a breath of fresh air.