I mentioned sleep, exercise, and a healthy diet and IMO they're all connected. Nowhere did I mention anything about weight. But since we're on the topic now, I disagree with BMI alone as the single indicator of health. Canada seems to be moving in that direction as well. I try to eat healthy myself, but restaurants borderline conspire against that because healthy dishes just don't sell as well as those California Cream Sauce Specials with limitless bread.
lol. A tangent, but it so happens that my dad literally tried that because he hated CICO with a passion. An undiagnosed genetic condition took his life (this is a long time ago) before he could publish his book.
I'm sorry for your loss and for the loss of his effort (presuming you or another heir have not taken up the reins of his intellectual property).
Another step to consider in lateral thinking about (personal diet -> diet book) is the marketing of such. Instead of allowing it on the marketplace, it could be sold by word of mouth in the manner of multilevel marketing. Many MLM systems act as giant siphons for unethical people. I wonder if a forking blockchain could act as method to promote honest transparency, where each level of organization becomes a fork.
