Hey @scienceblocks, thank you for the article. Resteem!

This issue with the ketone bodies was solved already in 70s. They found that heart muscle cells rely on sugar in the case of high energy demand. Even though cardiac muscle cells primarily consume fat under "normal" conditions. I will look at whether I can find the article and send you a link, probably tomorrow.

Once more the studies you cite indicate that unprocessed foods are the best choice even when there are potentially harmful molecules such a fructose included. Nevertheless, fructose is the main energy source for sperm cells. Are there any studies around showing that a lack of fructose makes mice sterile?

Metabolism is really not an easy issue.

Regards

Chapper