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Do vitamins suddenly become completely ineffective after the expiration date?

April 26, 2017completely expiration ineffective suddenly vitamins

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Do vitamins suddenly become completely ineffective after the expiration date?

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They don’t become entirely useless. “Vitamins and minerals are components of food, so they lose potency over time,” Lieberman says. Regardless of the expiration date, once you open a supplement bottle and expose it to light and air, you should use the contents within a year or throw it away.