The word "mg" is an abbreviation for milligram, which is a measure of weight or mass. It is very small, with 1,000 milligrams equaling one gram. Full definition
Hair loss may occur when you switch supplements depending on the amount of mg of each ingredient in the stack, but I did not experience that. (acnesupplementscritic.com)
Studies show more than 400 mg per day can put a person at risk of adverse effects. (inc.com)
They also have no cholesterol and are low in salt, with only 4 mg sodium per cup. (farmerdirect.coop)