What happens if you have too much vitamin B6 and B12?

An excess of B6 can cause nerve damage, while excess quantities of vitamin B12 -- while rare -- may cause complications for people with certain underlying conditions. Consult your doctor before taking vitamin B6 or vitamin B12 to avoid health problems.
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Can you have too much vitamin B6 or B12?

Consuming vitamin B-6 through food appears to be safe, even in excessive amounts. When used as a supplement in appropriate doses, vitamin B-6 is likely safe. However, taking too much vitamin B-6 from supplements can cause: A lack of muscle control or coordination of voluntary movements (ataxia)
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What happens if your B12 is too high?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache. Nausea and vomiting. Diarrhea.
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Can you take vitamin B6 and B12 together?

Vitamin B6 and vitamin B12 can be taken together. They are often combined in multivitamin supplements and in B-complex supplements. Vitamin B6 deficiency is uncommon, however, and usually occurs in people who have low levels of other B-complex vitamins, such as vitamin B12 and folic acid.
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How much B6 and B12 should I take daily?

Younger adults need 1.3 milligrams of B-6; after age 50, women need 1.5 mg and men need 1.7 mg. adults need 2.4 micrograms of B-12. Pregnant and lactating women need a little more of both. What are the best food sources?
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Is Too Much B12 Bad (Can You Take Too Much b12?)



Can too many B vitamins be harmful?

There is no toxic dose established in humans. However, at doses higher than 50 mg per day, some side effects such as skin flushing can occur. Therapeutic doses of 1500 to 1600 mg per day can be given, but with a risk of liver toxicity, especially in the presence of pre-existing liver disease.
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What does high levels of B6 cause?

Very high doses, 200 mg or more per day, of vitamin B6 can cause neurological disorders, such as loss of feeling in the legs and imbalance. Stopping high doses usually leads to a complete recovery within 6 months. There have been rare reports of allergic skin reactions to high doses of vitamin B6 supplements.
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How much vitamin B6 is too much?

Taking more than 1,000 mg of supplemental B6 a day may cause nerve damage and pain or numbness in the hands or feet. Some of these side effects have even been documented after just 100–300 mg of B6 per day ( 49 ). For these reasons, the tolerable upper limit of vitamin B6 is 100 mg per day for adults (3, 50 ).
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Is vitamin B6 and B12 good for weight loss?

As you cut calories to lose weight, you may be depriving yourself of important nutrients. Two of the most important vitamins you need for weight loss success are vitamins B6 and B12.
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Can vitamin B6 cause anxiety?

4. Mood Changes. Shortfalls of B6 may affect your mood, sometimes contributing to depression, anxiety, irritability and increased feelings of pain ( 16 ). That's because B6 is involved in the making of several neurotransmitters, such as serotonin and gamma-aminobutyric acid (GABA).
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How do you flush B12 out of your system?

Drink lots of water. It is water soluble. It will flush out from your body. Avoid any B12 supplements.
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What vitamins should not be taken together?

Here are six vitamin combinations you definitely shouldn't take together.
  • Magnesium and calcium/multivitamin. ...
  • Vitamins D, E and K. ...
  • Fish Oil & Gingko Biloba. ...
  • Copper and zinc. ...
  • Iron and Green tea. ...
  • Vitamin C and B12.
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How do you get rid of excess vitamin B6?

Drink water to help flush excess vitamin B6 from the body. Since this compound is water-soluble, urine is the primary means of excretion, according to Memorial Sloan-Kettering Cancer Center. Typically, it takes the body between 15 and 25 days to eliminate unused pyridoxine. Drink eight, 8-oz.
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Should I stop taking vitamins if my pee is bright yellow?

Bright yellow urine is common when taking a vitamin B complex, specifically due to the B2 vitamin, also known as riboflavin. In fact, “flavin” comes from the Latin “flavus” which means yellow. So don't ditch your daily vitamins yet—they're actually a vital part of maintaining your overall health.
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Does B12 help with belly fat?

Studies show that having adequate blood levels of vitamin B12 may be linked to a lower risk of obesity in children and adults. Plus, animal research suggests that vitamin B12 may affect body fat and metabolism.
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Will vitamin B6 make me gain weight?

Although vitamins and minerals are needed to extract energy from the food we eat, B vitamins alone won't result in weight gain. In fact, most people are falling short of the various vitamins and minerals we need to support overall health, metabolism and longevity.
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What are the side effects of vitamin B6?

In some people, vitamin B6 might cause nausea, stomach pain, loss of appetite, headache, and other side effects. Vitamin B6 is possibly unsafe when taken in doses of 500 mg or more daily. High doses of vitamin B6, especially 1000 mg or more daily, might cause brain and nerve problems.
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What does B6 toxicity feel like?

Patients typically experience symptoms of peripheral neuropathy, dermatoses, photosensitivity, dizziness, and nausea with long-term intake of dosages above 250 mg/day. Additional morbidity would include ataxia and dysesthesias.
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Can too much vitamin B6 cause neuropathy?

Abstract. Vitamin B6 (pyridoxine) causes neuropathy at intakes of 1000 mg per day or more, which is about 800 times the daily intake from foods. There have also been occasional reports of toxicity at intakes of 100-300 mg per day.
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Can too much B6 cause tingling?

A known side effect of vitamin B6 is peripheral neuropathy, which has symptoms of tingling, burning or numbness, usually in the hands or feet. It usually occurs at high doses or following long-term use of products containing vitamin B6. Peripheral neuropathy is not associated with normal dietary intakes of vitamin B6.
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Can too much B vitamins cause neuropathy?

Excess of vitamin B6 can lead to a sensory neuropathy or neuronopathy, which most obviously occurs with megadoses of vitamin B6 (greater than 2 g/d), but has also been reported in patients taking lower doses (50 mg/d) over long periods.
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Can B12 cause anxiety?

B12 deficiencies are often a root cause of neurological, psychiatric and cognitive issues. Having a B12 deficiency puts you at risk for developing depression and anxiety, fatigue, and can worsen hypothyroid and other health concerns.
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What are the signs of vitamin overdose?

  • Intestinal bleeding (from iron)
  • Appetite loss.
  • Constipation (from iron or calcium)
  • Diarrhea, possibly bloody.
  • Nausea and vomiting.
  • Stomach pain.
  • Weight loss (from long-term overdose)
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Is it OK to take 1000 mcg B12 daily?

The most common treatment for pernicious anemia is lifelong vitamin B12 injections, but small amounts of vitamin B12 are absorbed without intrinsic factor. One review concluded that taking 1,000 mcg daily is an effective alternative to injections ( 42 ).
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