With what I've been learning about mitochondria, I think that mitochondrial health is the most important aspect of health we can focus on.
Discussion
"Mitochondrial metabolism is now being seen as the basic problem in aging and several degenerative diseases."
"In old age, the walls of blood vessels tend to become hardened with calcium. In at least some tissues, it is known that calcification begins in degenerating mitochondria, and mitochondria tend to deteriorate in aging tissue. Nutrients such as iodine, vitamin E, magnesium and vitamin B2 are especially important for maintaining the function of the mitochondria, which produce most of our energy."
Ray Peat
I high dose iodine, taking it with magnesium every day,. One of my few regular supplements (zinc and electrolytes being the others).
I'm thinking about writing a long post about Mineral Balancing in the near future. I've been learning about it for a while but only just this week settled down enough that I can consistently focus on things outside of my day job for the first time in several months.
Most important mineral is sodium chloride. Optimum amount is 7.5 to 12.5 grams a day.
I also use salt with my food, I just don't think of that as a "supplement" in the same way as I take the other minerals.
People who don’t eat junk food often don’t get enough salt.
Specific symptoms of deficiency are leg cramps, dizziness on standing , passing urine during the night and craving salty foods like olives and pickles.
It's the baseline for everything else!