what happens when you have too much vitamin b?
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A minimum daily dose of each vitamin is necessary to maintain good health. Significantly exceeding this dose, however, can cause illness. In general, the symptoms of vitamin toxicity include nausea, gastrointestinal problems like constipation and diarrhea, hair loss, rashes, and nerve damage.
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It's usually caused by taking too many vitamins. If not treated, excess vitamin E can lead to serious health problems, including an increased risk of stroke.
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You should be able to get all the vitamin B12 you need by eating a varied and balanced diet. If you take vitamin B12 supplements, do not take too much as this could be harmful. Taking 2mg or less a day of vitamin B12 in supplements is unlikely to cause any harm.
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What happens if I don't get enough vitamin B12? Vitamin B12 deficiency causes tiredness, weakness, constipation, loss of appetite, weight loss, and megaloblastic anemia. Nerve problems, such as numbness and tingling in the hands and feet, can also occur.
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Biotin is a water-soluble vitamin, so any extra biotin in your body will flush out through your urine. This makes a potential overdose unlikely. If you develop an unusual or unexpected skin rash after increasing your biotin intake, see your doctor. In rare cases, this is a sign of biotin overdose.
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High doses of nicotinamide, another form of vitamin B-3, can cause diarrhea and increased bleeding. This can occur in doses of 500 mg per day. Doses higher than 3,000 mg can cause vomiting and liver damage. Excess folic acid.
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Potential Side Effects However, taking supplements that contain excessively high and unnecessary quantities of B-complex vitamins could lead to serious side effects. High doses of supplemental B3 (niacin) may lead to vomiting, high blood sugar levels, skin flushing and even liver damage ( 34 ).
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Usually, excess vitamin B12 is removed in the urine. Conditions that can increase B12 level include: Liver disease (such as cirrhosis or hepatitis) Myeloproliferative disorders (for example, polycythemia vera and chronic myelogenous leukemia)
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High levels of Vitamin B6 can be toxic. And excessive levels of B6 have also been linked to insomnia. If you're considering a B6 supplement, it's important to work with your doctor to find the right dose.
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What happens if I don't get enough thiamin? You can develop thiamin deficiency if you don't get enough thiamin in the foods you eat or if your body eliminates too much or absorbs too little thiamin. Thiamin deficiency can cause loss of weight and appetite, confusion, memory loss, muscle weakness, and heart problems.
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Vitamin B12 deficiency causes tiredness, weakness, constipation, loss of appetite, weight loss, and megaloblastic anemia. Nerve problems, such as numbness and tingling in the hands and feet, can also occur.
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Of all the possible vitamin toxicities that could occur after eating too many vitamins, vitamin A toxicity is most likely. Too much vitamin A can cause hair loss, skin irritation, dizziness, trouble walking, nausea and vomiting.
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Too much vitamin C may cause digestive symptoms The most common side effect of high vitamin C intake is digestive distress. In general, these side effects do not occur from eating foods that contain vitamin C, but rather from taking the vitamin in supplement form.
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Left untreated, a vitamin B-12 deficiency can lead to anemia, fatigue, muscle weakness, intestinal problems, nerve damage and mood disturbances. The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms.
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Vitamin overdose occurs when a person ingests far more than the daily recommendation, for an extended period of time. Although the body can excrete excessive amounts of water-soluble vitamins such as vitamin C, it can retain fat-soluble vitamins such as vitamin A, which can be toxic.
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Vitamin D toxicity, also called hypervitaminosis D, is a rare but potentially serious condition that occurs when you have excessive amounts of vitamin D in your body. Vitamin D toxicity is usually caused by large doses of vitamin D supplements — not by diet or sun exposure.
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What is the most important information I should know about Nature's Bounty Hair Skin & Nails? Many vitamins can cause serious or life-threatening side effects if taken in large doses. Do not take more of this medicine than directed on the label or prescribed by your doctor.