How do you define normal? Is a pop tart normal? Grape nuts? Whole wheat toast? Three square meals a day? From an evolutionary perspective, modern eating habits are in direct contrast to our earlier, more "paleo" diet. This would include periods without food, which gives the body a rest from metabolizing substance so it can repair itself. The benefits of fasting have been a part of human knowledge for thousands of years, and only in a very tiny fraction of that time, modern society has turned all that knowledge aside, choosing instead to trust the government mandated RDA on their box of nutri-bars. Keep in mind this is the same government that says pizza sauce counts as a serving of vegetables. Really?
If you want to see real health at its finest, google Markus Rothkranz, a guy that looks better at 51 then he did in his twenties. He didn't get that from eating "normal".
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We are not so different from potted plants in that, if given everything we need to be properly nourished, the outcome can be incredibly contrary to when we are not. A flower won't grow in flour, and neither can we.