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Ask Marilyn: Where Are Vitamins in Supplements Obtained?
Sara Petrick of Apollo Beach, Florida, writes:
Marilyn: While taking my vitamins one morning, I began to wonder: Where are the vitamins in these supplements obtained?
Most ordinary vitamin supplements are synthetic, manufactured entirely in laboratories, but have molecular structures that are almost—though not quite—identical to their counterparts found in nature.
Other synthetic vitamins differ more significantly from natural ones, depending on the production process involved, yet have similar actions. Still other vitamins combine synthetic and natural materials. Regardless, any non-food vitamin should be considered a vitamin substitute, not a vitamin replacement.
The variety on the shelf is huge, but one thing is certain: Not all vitamin supplements are created equal!