Is there a downside to taking B12?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache. Nausea and vomiting. Diarrhea.

What are the negatives to taking B12?

When should I not take vitamin B-12?

If you have any of the following health problems, consult your doctor or pharmacist before using this medication: a certain eye disease (Leber's optic neuropathy), a certain blood disorder (polycythemia vera), gout, iron or folic acid deficiency anemia, low potassium blood levels (hypokalemia).

What are the advantages and disadvantages of vitamin B-12?

Vitamin B12 benefits include forming red blood cells, preventing dementia, and reducing birth defects. Vitamin B12 is found in foods like meat, eggs, dairy, and fish. Side effects of B12 are rare but can include headaches, anxiety, and nausea.

Should I take B12 every day?

The recommended daily intake (RDI) for vitamin B12 for people over 14 is 2.4 mcg ( 1 ). However, you may want to take more or less, depending on your age, lifestyle, and specific situation.

Dangers of vitamin B12 deficiency

Is it OK to take 1000 mcg B12 daily?

What is the dosage for cyanocobalamin tablets? The recommended dose for treating vitamin B12 deficiency is 1000 mcg daily. The recommended dose for preventing vitamin B12 deficiency is 1500 mg or 2500 mcg (sublingual tablets) daily.

Can too much B12 make your hair fall out?

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.

Does vitamin B12 cause weight gain?

Despite the numerous processes in which vitamin B12 is involved, there's little evidence to suggest that it has any influence on weight gain or loss.

Can vitamin B12 cause heart problems?

Macrocytosis associated with vitamin B12 deficiency is also associated with fatal and non-fatal coronary disease, myocardial infarction, stroke, and other circulatory health problems.

Can too much B12 cause neuropathy?

Thus, vitamin B12 may be associated with both sensory and motor peripheral nerve function. In older adults, the prevalence of poor peripheral nerve function and neuropathy is high and increases with age^18–21.

What happens when vitamin B12 is very high?

High. An abnormally high vitamin B-12 status is anything over 900 pg/mL. This result may suggest liver or kidney problems, diabetes, or certain forms of leukemia.

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.

Does B12 affect cholesterol?

They found that low levels of vitamin B12 were associated with higher levels of total cholesterol, LDL (bad) cholesterol, and triglycerides—even after adjusting for the effects that body mass index, abdominal fat, and total body fat percentage have on the body.

Is vitamin B12 good for cholesterol?

In conclusion, the vitamin B₁₂ plays an important role in the adipocyte metabolism and its deficiency led to increased homocysteine and total cholesterol.

Is B12 good for arteries?

Conclusions: Vitamin B-12 supplementation improved arterial function in vegetarians with subnormal vitamin B-12 levels, proposing a novel strategy for atherosclerosis prevention.

Does B12 help hair growth?

Studies suggest deficiencies in vitamins B12 and D, biotin, riboflavin, iron, and other nutrients are associated with hair loss ( 1 ). Eating a balanced diet that is rich in these vitamins and minerals may help promote hair growth, especially if you're experiencing hair loss due to poor nutrition.

Does B12 help with anxiety?

However, when it comes to vitamin B for anxiety, vitamin B12 is especially powerful for managing your mood. For instance, there's a strong correlation[4] between low levels of B12 and increased rates of anxiety and depression.

Can low B12 cause hair loss?

Low B12 and Hair Loss

Symptoms of low B12 often occur when blood level drops below 300 ng/l and include hair loss, breathlessness, lack of energy palpitations, bleeding gums, mouth ulcers, tingling in the hands and feet. There are two types of B12 deficiency: Lack of dietary B12 – usually vegetarians and vegans.

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.

What vitamin Are you lacking If your hair is thinning?

Biotin. Biotin (vitamin B7) is important for cells inside your body. Low levels of it can cause hair loss, skin rashes, and brittle nails.

How much B12 should an older woman take?

Dosages for Older People

Around this age, you should be getting around 2.4 micrograms of B12 a day. Not only does this mean consciously eating foods that contain vitamin B12 but it also means that you should ingest this vitamin as a supplement. By taking supplements, you will ensure that your body absorbs vitamin B12.

What are the symptoms of high B12 levels?

Does B12 lower BP?

We found that a higher intake of vitamin B12 was associated with lower systolic and diastolic blood pressure and a higher intake of folic acid was associated with lower systolic blood pressure in children.

Do Statins Lower B12?

Many studies have favored the use of CoQ10 supplementation while taking a statin. However, it is important to know that cholesterol lowering medications do also cause depletions in Vitamin B12, Vitamin E, Vitamin D, Vitamin A, Iron and Vitamin B9.” If someone is taking a statin drug what precautions should they take?