They in fact do have a lot of requirements for supplements and their labeling, but do not require (in fact forbid) any claims that the supplements should be use

They in fact do have a lot of requirements for supplements and their labeling, but do not require (in fact forbid) any claims that the supplements should be used to treat or cure any disease. https://www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/dietary-supplement-labeling-guide https://www.fda.gov/food/dietary-supplements-guidance-docume...