It's important to know exactly what is in a dietary supplement capsule before you pop it in your mouth. When magnesium and stearic acid are bound together, the compound is known as magnesium stearate, an anti-caking agent that helps keep the ingredients in tablets and capsules from sticking to processing equipment. This results in consistent amounts of active ingredients in each tablet or capsule.
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Magnesium Stearate Explained
Essential for life, magnesium is a mineral that is necessary to turn food into energy, transport nutrients across cell membranes, maintain bone structure and make DNA. Stearic acid is a saturated fat that occurs naturally in animal and plant foods, such as chicken, grass-fed beef, coconut oil and chocolate. According to the U.S Food and Drug Administration, magnesium stearate is safe for humans.