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Is it safe to take multivitamins twice a day?

Multivitamins :

Taking 2 multivitamins a day can put your health at risk and reason intense toxicity. When consumed in large doses, certain nutrients can also affect the kidneys, growth the threat of bleeding, and promote the formation of calcium stones, among different side effects.

Additionally, dietary supplements, including multivitamins, can also interact with prescription drugs. Discuss your options with a medical professional. If your diet is balanced, you may not want a daily multivitamin at all.

Dietary supplements:

More than 70% of Americans take dietary supplements, according to the Council for Responsible Nutrition (CRN). About 83% of adults aged 18 to 34 and 75% of those aged 35 to 54 take multivitamins. These tablets are designed to fill nutrient gaps and save you deficiencies. However, their effectiveness is subject to debate.

Some dietary supplements include an excessive amount of certain vitamins and minerals that could result in facet outcomes. Large doses of vitamin A, for instance, can also reason nausea and vomiting, blurry vision, dizziness, and different moderate negative reactions. Over time, you can feel more critical facet outcomes, along with liver damage, joint ache, and bone thinning.

Iron helps the formation of purple blood cells and protects against anemia. A low level of this mineral in the bloodstream can affect immune function, cognition, and studying abilities. Too a good deal of iron, on the opposite hand, can also additionally reason fluid buildup in the lungs, low blood pressure, abnormal heartbeat, liver damage, convulsions, fever, and coma.

Balanced diet:

If you’ve got a balanced diet, you probably do not want to take a multivitamin daily. However, there are instances when those dietary supplements can help.


Crohn’s ailment, for instance, reduces the absorption of vitamins and minerals in the body, which can also bring about intense deficiencies and malnutrition. Multivitamin supplements can gain the ones who have this inflammatory bowel disorder.


The scientists reviewed numerous medical trials performed on more than 400,000 members and concluded that multivitamins haven’t any impact on the threat of cancer, coronary heart ailment, or early death. On the contrary — positive vitamins, along with Vitamin A, Vitamin E and beta-carotene can also additionally growth the threat of death, mainly while consumed in large doses. Researchers have located no affiliation between multivitamins and continual ailment prevention.


Johns Hopkins nutrients specialists performed their very own research. After reading numerous research and reviews, together with the only ones noted above, they concluded that multivitamins do not shield against cardiovascular problems, intellectual decline, coronary heart assault, or untimely death. The handiest exception is folic acid, which can also additionally gain pregnant women.


Multivitamins seem like secure for long-time period use. Too a good deal of whatever may be harmful, though — and dietary supplements aren’t any exception. Taking multivitamins twice a day can also additionally reason intense toxicity.

Except for niacin, water-soluble nutrients (along with riboflavin and folic acid) are not going to reason critical side effects because more is removed in the urine. Vitamin B3, or niacin, can also additionally produce a transient sensation of warmth that lasts up to 8 hours, in line with the U.S. National Library of Medicine. Other vitamins, though, can also have life-threatening side effects while consumed in excess.


Calcium, for instance, is crucial for tooth and bone fitness. It additionally performs an essential function in nerve and muscle function. However, large doses of calcium supplements can also additionally result in kidney stones, constipation, and terrible absorption of iron and zinc. Multivitamins containing calcium can also additionally interact with antibiotics, thyroid medications, anticonvulsants, and different drugs.

Multivitamins containing calcium can also additionally interact with antibiotics, thyroid medications, anticonvulsants, and different drugs.


Multivitamin supplements regularly include zinc. This mineral helps your natural defenses, contributes to protein synthesis, and speeds up wound healing, among different functions. Too a good deal of it can have an effect on copper absorption, lessen proper levels of cholesterol, and have an effect on your immune machine. You may enjoy nausea and vomiting, stomach ache, diarrhea, and different digestive symptoms. Another instance is vitamin E, a fat-soluble nutrient with antioxidant outcomes. When utilized in good enough doses, it continues your immune system strong, protects against loose radical damage, continues the integrity of cell membranes, and fights inflammation. However, it may grow the threat of bleeding while consumed in excess.

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