Actually, there is a brilliant book but solely available in German, called Der Ernährungskompass by Bas Kast.

Further, concerning autophagy, you can read the book by Naomi Whittel Glow15. The latter one, however, is a bit pseudo-scientific and there is also too much blablabla in it. Not enough hard facts in my opinion.

For more good information scientific literature is unavoidable. Nevertheless, I condensed many facts in my articles here on Steemit.

Check this overview for more information.

Oh, and don't get discouraged by low upvote number. It takes a while until you have arrived here and further you have to take into account hat temporarily the cryptos have a hard time thus not attracting that many new members.

By the way I'm from Magdeburg Germany but have lived in Hobart (Tasmania) for a while (it's more than 6 years ago).

Greetings to Oz

Chapper