Do you think that OSHA serves a valued objective today?  Or should industry manage its own affairs without this type of regulation? Are there parts of OSHA that need improvement?

Section 3.17 mentions that arsenic poisons human cells because it halts the production of ATP. This happens because the structure of arsenic atoms closely resembles that of phosphorus atomsso close, in fact, that arsenic can take the place of phosphorus in chemical reactions. Why would the substitution of arsenic atoms for phosphorus atoms prevent the formation of ATP?

The American Heart Association and other health organizations have concluded that consumers should get their antioxidants from foods rather than supplements. They add that taking supplements may even be harmful. Supplement manufacturers claim that such statements are unfair and that their natural botanical extracts provide numerous health benefits. In fact, some suggest that beneficial effects can only be achieved by taking high-dose supplements. Given that there are currently no DRI defining the kinds of antioxidants or the daily quantities needed, how might you ensure a healthy intake of antioxidants? If you decide to take an antioxidant supplement, how might you research the product to determine its safety and effectiveness?