If I don't take Vitamin-C, my gums bleed when I brush my teeth. Low doses are hard to find, but I have a pill cutter, & cut mine in half. More isn't always better.
Along with Vitamin-D, Vitamin-E is the most commonly deficient vitamin in the standard American diet. If you're not consciously seeking out dietary sources of E (nuts), a low dose of mixed toco Vitamin-E might be wise. Vitamin-E is the bodies primary lipid antioxidant, & there really isn't much that can compensate for a deficiency of this. Maintaining good iron homeostasis through blood donation or use of iron chelators like curcumin can reduce the need for Vitamin-E. Iron acts as a catalyst for lipid oxidation, so the higher your ferritin (over 100), the more Vitamin-E becomes important.
Magnesium is the most common mineral deficiency, & Mag-Citrate is the easiest on my tum. When I take it before bed, it actually helps me to relax & sleep. Again, I have to use the pill cutter as too much Mag-Citrate can cause loose bowels. Sub-optimal mag can throw a lot of physiology out of whack.
http://lpi.oregonsta...erals/magnesium
"Magnesium is involved in more than 300 essential metabolic reactions"