Can you overdose b6

Certain autoimmune disorders, some epilepsy medications and alcohol dependence also can lead to vitamin B-6 deficiency. This can cause a condition in which you don't have enough healthy red blood cells to carry adequate oxygen to your body's tissues anemia , confusion, depression and a weakened immune system. A vitamin B-6 deficiency is usually coupled with deficiency in other B vitamins, such as folic acid vitamin B-9 and vitamin B The recommended daily amount of vitamin B-6 for adults 50 and younger is 1.

After age 50, the recommended daily amount is 1. A healthy and varied diet will provide most people with enough vitamin B However, for people with kidney diseases, malabsorption syndromes and certain other conditions, a vitamin B-6 supplement may be necessary.

Vitamin B-6 supplements are also effective for treating a genetic form of anemia and for preventing an adverse reaction to the antibiotic cycloserine Seromycin , a prescription drug taken to treat tuberculosis. Check with your doctor before taking vitamin B-6 if you're using any medications. Possible drug interactions include:. There is a problem with information submitted for this request.

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Vitamin B6 toxicity is not likely to occur from food sources of B6. It would be nearly impossible to consume the amount in supplements from diet alone. Taking more than 1, 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 — mg of B6 per day For these reasons, the tolerable upper limit of vitamin B6 is mg per day for adults 3 , The amount of B6 used to manage certain health conditions rarely exceeds this amount. High doses of B6 have been used to prevent or treat certain health conditions, including PMS, age-related macular degeneration AMD and nausea and vomiting during pregnancy. Getting enough B6 through your diet or a supplement is crucial for staying healthy and may have other impressive health benefits as well.

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Health Conditions Discover Plan Connect. Your body cannot produce vitamin B6, so you must obtain it from foods or supplements. Here are 9 health benefits of vitamin B6, backed by science. Share on Pinterest. Vitamin B6 plays an important role in mood regulation.

Summary Low levels of vitamin B6 in older adults have been linked to depression, but research has not shown that B6 is an effective treatment for mood disorders.

However, studies have not proven the effectiveness of B6 in improving brain health. More research is needed to understand the effectiveness of vitamin B6 in treating anemia in populations other than those at increased risk for B vitamin deficiency, such as pregnant women and older adults Summary Not getting enough vitamin B6 can lead to low hemoglobin and anemia, so supplementing with this vitamin may prevent or treat these issues.

Summary Some research has indicated that high doses of vitamin B6 may be effective at decreasing anxiety and other mood issues associated with PMS due to its role in creating neurotransmitters. Summary Vitamin B6 supplements in doses of 30—75 mg a day have been used as an effective treatment for nausea and vomiting during pregnancy.

Vitamin B6 may prevent clogged arteries and minimize heart disease risk. Human research also shows a beneficial effect of B6 in preventing heart disease. Summary Vitamin B6 may help reduce high homocysteine levels that lead to narrowing of arteries. This may minimize heart disease risk. May Help Prevent Cancer. Getting enough vitamin B6 may lower your risk of developing certain types of cancer.

Other symptoms of very low vitamin B6 levels include depression, confusion, and a weak immune system. Infants who do not get enough vitamin B6 can become irritable or develop extremely sensitive hearing or seizures. Scientists are studying vitamin B6 to understand how it affects health.

Here are some examples of what this research has shown. Some scientists had thought that certain B vitamins such as folic acid, vitamin B12, and vitamin B6 might reduce cardiovascular disease risk by lowering levels of homocysteine , an amino acid in the blood. Although vitamin B supplements do lower blood homocysteine, research shows that they do not actually reduce the risk or severity of heart disease or stroke.

People with low levels of vitamin B6 in the blood might have a higher risk of certain kinds of cancer, such as colorectal cancer. But studies to date have not shown that vitamin B6 supplements can help prevent cancer or lower the chances of dying from this disease. Some research indicates that elderly people who have higher blood levels of vitamin B6 have better memory.

Scientists aren't yet certain about the potential benefits of taking vitamin B6 for premenstrual syndrome PMS. But some studies show that vitamin B6 supplements could reduce PMS symptoms , including moodiness, irritability, forgetfulness, bloating, and anxiety. At least half of all women experience nausea , vomiting, or both in the first few months of pregnancy. Based on the results of several studies, the American Congress of Obstetricians and Gynecologists ACOG recommends taking vitamin B6 supplements under a doctor's care for nausea and vomiting during pregnancy.

People almost never get too much vitamin B6 from food or beverages. But taking high levels of vitamin B6 from supplements for a year or longer can cause severe nerve damage, leading people to lose control of their bodily movements.

The symptoms usually stop when they stop taking the supplements. Other symptoms of too much vitamin B6 include painful, unsightly skin patches, extreme sensitivity to sunlight, nausea, and heartburn. The daily upper limits for vitamin B6 include intakes from all sources—food, beverages, and supplements—and are listed below.

These levels do not apply to people who are taking vitamin B6 for medical reasons under the care of a doctor. Yes, vitamin B6 supplements can interact or interfere with medicines that you take. Here are several examples:. Tell your doctor, pharmacist, and other healthcare providers about any dietary supplements and medicines you take.