Do multivitamins prevent deficiency?

Online Answer
Using a multivitamin could reduce risk of deficiency from 70% to 30% in people with the poorest diets, when compared to people not taking a dietary supplement. In people with adequate diets, risk of deficiency was reduced from 28% to 5% when comparing dietary non-users with multivitamin users.
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The researchers concluded that multivitamins don't reduce the risk for heart disease, cancer, cognitive decline (such as memory loss and slowed-down thinking) or an early death. They also noted that in prior studies, vitamin E and beta-carotene supplements appear to be harmful, especially at high doses..
Water-soluble vitamins absorb best on an empty stomach. That means taking them first thing in the morning, 30 minutes prior to eating, or two hours after a meal. Water-soluble vitamins dissolve in water so your body can use them. Vitamin C, all B vitamins, and folate (folic acid) are water soluble..
The researchers concluded that multivitamins don't reduce the risk for heart disease, cancer, cognitive decline (such as memory loss and slowed-down thinking) or an early death. They also noted that in prior studies, vitamin E and beta-carotene supplements appear to be harmful, especially at high doses..
Taking vitamins on an empty stomach can frequently upset the GI tract, says gastroenterologist Christine Lee, MD. "Many people experience stomach pains, nausea and even diarrhea.
Can taking a multivitamin expand your waistline? The short answer is no, but if you are having troubles with weight gain and are taking dietary supplements, then read on.