Which vitamins are toxic if taken in excess?

Which vitamins are toxic if taken in excess?

Given that fat-soluble vitamins can accumulate in the body, these nutrients are more likely to lead to toxicity than water-soluble vitamins. While rare, taking too much vitamin A, D, or E can lead to potentially harmful side effects ( 5 ).

How many vitamins a day is too much?

“Most people think it’s fine to take as much as they want,” says Rosenbloom. “I know people who take 10,000 mg a day.” However, the upper tolerable limit is 2,000 mg a day. “People at risk for kidney stones can increase that risk; people also can get diarrhea.

What happens if I take too much multivitamin?

Minerals (especially taken in large doses) can cause side effects such as tooth staining, increased urination, stomach bleeding, uneven heart rate, confusion, and muscle weakness or limp feeling. When taken as directed, multivitamins and minerals are not expected to cause serious side effects.

What are the side effects of vitamin toxicity?

6 Symptoms may include kidney stones, nausea, recurrent vomiting, constipation, excessive thirst, excessive urination, confusion and weight loss. Taking high doses has also been linked to cancer risk, heart problems, and an increased risk of bone fractures.

What are the symptoms of too much vitamin A?

Consuming very large amounts of vitamin A all at once can cause drowsiness, irritability, headache, nausea, and vomiting within hours, sometimes followed by peeling of the skin. Pressure within the skull is increased, particularly in children, and vomiting occurs.

How do you know if you are overdosing on vitamins?

Here are a few vitamins that are proven to be toxic if taken in excess, as well as their symptoms of overdose: Iron- Nausea, bloody stools, diarrhea, dizziness, headache, fluid build-up in the lungs and fever. Vitamin A-Hair loss, liver damage, severe headaches, bone pain, blurred vision, dry skin and vomiting.

How much vitamin A is considered toxic?

The acute toxic dose of vitamin A is 25,000 IU/kg, and the chronic toxic dose is 4000 IU/kg every day for 6-15 months.

Is it possible to take too many vitamins?

You can definitely take too many. Taking high doses of vitamin C can lead to stomach cramping and diarrhea, for example. High doses of vitamin A, vitamin D, and other nutrients can lead to more serious, long-term complications—like liver and kidney problems, or a dangerous hardening of blood vessels .

Are too many vitamins bad?

Long-term mega doses of some vitamins cause adverse health effects, however. These vitamins include niacin, folate, B6, C, A, D and E. Harmful effects occur with high dosages from dietary supplements; amounts contained in food are not high enough to have serious consequences.