I appreciated their synthesis but I think some general recommendations would have also been useful for the public (imperfect but helpful): 1. Ask primary care

I appreciated their synthesis but I think some general recommendations would have also been useful for the public (imperfect but helpful): 1. Ask primary care physician for a lab referral or purchase a nutrient deficiency test from a straight to consumer lab (cost was lower than I expected at ~$100-$200). 2. Google whether nutrient is actually bioavailable when taken as a supplement. 3. Use independent tests to ascertain brand quality for specific supplement or overall trustworthiness (labdoor is the one I'm familiar with).