What are three specific reasons that you might not recommend a person take a multivitamin?

Why should I not take a multivitamin?

Multivitamins that offer large amounts of fat-soluble vitamins can be harmful, as excess levels of these vitamins can build up in the body. For instance, excess intakes of vitamin A may cause headaches, liver damage, weaker bones, and birth defects ( 11 ).

What are the negative effects of multivitamins?

Constipation, diarrhea, or upset stomach may occur. These effects are usually temporary and may disappear as your body adjusts to this medication. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.

What should you avoid in a multivitamin?

Are multivitamins toxic?

Consumption of doses at or near the recommended levels (as is often, but not necessarily, the case for multivitamins⁸) is unlikely to cause harm, and some vitamins, such as thiamine and riboflavin, are relatively benign even at doses several times their recommended levels.

The Disturbing Truth about Vitamin Supplements - Sharp Science

Are multivitamins safe?

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.

What are the side effects of taking multivitamins daily?

What vitamins are toxic?

Most people do not need vitamin supplements. Megadoses of vitamins A, D, E or K can be toxic and lead to health problems.

Can multivitamins make you sick?

Multivitamins that contain a lot of iron (like a prenatal vitamin) or iron supplements themselves can cause nausea, according to Dr. Donald Hensrud, medical director of the Mayo Clinic Healthy Living Program. This is especially true if you're taking them outside of a meal.

Are multivitamins useless?

Although multivitamins may be beneficial for some people, they're unnecessary for most. In some cases, they may even provide excessive amounts of certain nutrients. If you want to boost your nutrient intake through diet alone, consider adding some of these nutritious, whole foods to your routine.

Why do vitamins make your pee yellow?

High-dose vitamins can turn your pee a bright, almost neon yellow color. The most common culprit is vitamin B2, also known as riboflavin, which is found in most multivitamins. The neon color in pee is just a harmless sign that you're taking more than your body needs, and the excess is mixing with your pee.

Do vitamins make you poop a lot?

Vitamins and minerals do not have a major role in treating constipation. However, some people may experience constipation as a result of a vitamin deficiency, such as vitamin B-12 deficiency. In those situations, a vitamin supplement may help relieve constipation.

Can vitamins give you a headache?

The excessive ingestion of fat-soluble vitamins, such as vitamin A and D, and some water-soluble vitamins, including the various B vitamins and vitamin C, has the potential for serious side effects. Niacin may cause headaches.

Do you pee out vitamins?

When it comes to nourishing your body, you can do everything right—eat the rainbow, take your vitamins—but end up, basically, peeing out all of the good stuff. That's because bioavailability, or how well the body is able to absorb nutrients, matters.

Can vitamins cause disease?

Some vitamins and minerals are harmful in large doses, and people can get sick from overdosing on dietary supplements. Low levels of dietary supplements are safe, although they have not been shown to have any beneficial effect on health either.

Which two vitamins pose the greatest risk of toxicity?

Extra amounts of water-soluble vitamins are typically excreted. The fat-soluble vitamins A and D are the most likely to cause toxicity symptoms if you consume them in high amounts.

Can multivitamins affect your heart?

Vitamins and supplements can be unsafe.

Too much calcium and vitamin D are associated with an increased risk of cardiovascular disease, Miller says. Though studies are ongoing, there's little evidence that any amount of a vitamin D supplement will protect the heart, he adds.

What happens if you take too many multivitamins?

The most common side effects would be gastrointestinal upset, including diarrhea, nausea, and vomiting, according to Dr. Woods.

Can multivitamins cause high blood pressure?

At the end of the study, the researchers determined baseline multivitamin use didn't elevate risk of hypertension. This was consistent across all potential risk factors for hypertension (eg, age, BMI). There was also no association with incident hypertension even when multivitamin use changed during the study.

Can vitamins have a negative effect?

But routinely getting an overload of vitamins and minerals can hurt you. Too much vitamin C or zinc could cause nausea, diarrhea, and stomach cramps. Too much selenium could lead to hair loss, gastrointestinal upset, fatigue, and mild nerve damage.

Are vitamins helpful or harmful?

Vitamins and minerals are essential to helping your body develop and function as it should. While most people get all of what's recommended by eating healthy, others need a little extra nutrient boost. That's where supplements come in — providing you with the support your body needs to stay healthy.

Is daily multivitamin safe?

But there is still limited evidence that a daily cocktail of essential vitamins and minerals actually delivers what you expect. Most studies find no benefit from multivitamins in protecting the brain or heart. But There are potential benefits and no risks from a one daily standard multivitamin.

Can vitamins cause anxiety?

As much as you need vitamin A in your body, you need to aware that some food products that have vitamin A are likely to give you anxiety. It is so uncomfortable and irritating. Note better; you should not start avoiding taking in vitamin A products.

Can too many vitamins cause hair loss?

Over-supplementation of some nutrients may result in multiple toxicities, while over-supplementation of certain nutrients, including vitamin A, vitamin E, and selenium, may actually result in hair loss.

Can vitamins make you gain weight?

Do vitamins really cause weight gain? In a word, no. Vitamins cannot directly increase your weight, as they hardly have any calories. On the other hand, a lack of vitamins—vitamin deficiencies—may lead to adverse weight effects.