What are the signs and symptoms of too much B12?

What are the signs and symptoms of too much B12?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause:

• Headache.
• Nausea and vomiting.
• Diarrhea.
• Fatigue or weakness.
• Tingling sensation in hands and feet.

What causes high vitamin B12?

The increase in circulating cobalamin levels is predominantly caused by enhanced production of haptocorrin. Several liver diseases like acute hepatitis, cirrhosis, hepatocellular carcinoma and metastatic liver disease can also be accompanied by an increase in circulating cobalamin.

What is vitamin B12 1000 mcg good for?

Vitamin B12 is a nutrient that helps keep your body’s blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak.

What happens when your B12 levels are too high?

High vitamin B12 is a symptom of an underlying illness that causes the amount in your blood to increase. For example, a damaged liver may release the vitamin out of storage and into the blood. In early stages, illnesses associated with high vitamin B12 often have generic symptoms, such as fatigue and loss of appetite.

How often should I take B12 1000 mcg?

The usual dose for: diet-related deficiency is 50 micrograms to 150 micrograms, taken once a day. B12 deficiency not caused by your diet is one to two 1,000 microgram tablets, taken once or twice a day – this is usually if you cannot have vitamin B12 injections.

Is B12 level of 1200 too 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.

Should you take vitamin B12 everyday?

For most adults, the recommended daily intake (RDI) is 2.4 mcg, though it’s higher for women who are pregnant or breastfeeding ( 1 ). Vitamin B12 may benefit your body in impressive ways, such as by boosting your energy, improving your memory and helping prevent heart disease.

Can I take 1000 mcg of B12 once a week?

As with any supplement it is prudent not to take more than is required for maximum benefit, so intakes above 5000 micrograms per week should be avoided despite lack of evidence for toxicity from higher amounts.