Note: The U.S. Food and Drug Administration (FDA) does not approve supplements for safety or effectiveness. Talk to a healthcare professional about whether a supplement is the right fit for your ...

The FDA has set a reference daily intake for 12 minerals (calcium, iron, phosphorous, iodine, magnesium, zinc, selenium, copper, manganese, chromium, molybdenum and chloride). Sodium and potassium ...

Their work relies on analysis of isotopes of iodine and chromium in the nitrates. (Isotopes are atoms of different weights.) The isotopes are like geochemical fingerprints, revealing whether the ...