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College students who use vitamins as sources of nutrients often do so because their hectic schedules can force them to eat foods high in convenience but unsavory for their health.
But vitamins can't replace a healthy diet and should only be used as a backup for healthy food choices, experts say.
Peggy Apostolos, an Ingham Regional Medical Center dietitian, said one misconception about vitamins and supplements is that they can replace foods that have the same nutrients.
"People might think that they don't have to eat a healthy diet, and will think, 'If I don't have any protein, I'll just take a multi-vitamin,'" Apostolos said.
That assumption is false because nutrients in vitamins aren't as easily absorbed into the body as the same nutrients in food, she said.
Nutrients in vitamins could pass through the body while nutrients from food would be absorbed.
Also, vitamins do not contain essential protein, fat or carbohydrate, and won't give you the energy that food will, she said.
Eating nutritious food should always come before taking vitamins, with the exception being people who are allergic or intolerant to certain foods, said Ronda Bokram, registered dietitian and health educator at Olin Health Center.
Since the body can store a limited amount of each nutrient, excess amounts of nutrients don't necessarily lead to any improvements, Apostolos said.