Is that why people like that deuterium-depleted water? Super expensive.
Discussion
It is pro mitochondrial efficiency but it’s probably not needed if you have adequate sunlight exposure.
Maybe it would make more sense to apply during major illness or disease recovery to maximize all strategies.
I think I recall Jack Kruse talking about adding it to his regular water. Seems like it would make sense. ~150$ for a case of water is a strong commitment.