Is 1000 micrograms of B12 a lot?
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. The dose for treating hyperhomocysteinemia is 400 mg daily in combination with folic acid.
How much B-12 should you take a day MCG?
While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine. High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache.
Is it OK to take 10000 mcg B12 daily?
Though doses of up to 2,000 mcg of vitamin B12 are considered safe, it’s best to speak to a doctor to find out whether taking a supplement is necessary. Most people can fill their B12 needs through a healthy diet.
Can you take too much B12?
Since B12 is a water-soluble vitamin, it’s generally considered safe, even at high doses. No Tolerable Upper Intake Level (UL) has been established for B12, due to its low level of toxicity. UL refers to the maximum daily dose of a vitamin unlikely to cause adverse side effects in the general population.
What does vitamin B12 vitamin 1 000 MCG mean?
As such, “B12 vitamin 1,000 mcg” refers to a high dose (1,000 micrograms) of vitamin B12 suitable for someone with nutrient absorption issues or pernicious anemia.
How much vitamin B12 should you take daily?
If your doctor doesn’t advise you otherwise, taking a pill of 1,000 mcg once a week is the best choice. 5,000 mcg are too much for healthy people. Although supplements are unlikely to cause vitamin B12 overdose, only people with severe vitamin B12 deficiency, due to health issues may benefit from such mega dosages.
How much vitamin B-12 is absorbed by the body?
Typically, about 56 percent of a 1-microgram dose of B-12 is absorbed, and that rate of absorption decreases drastically if you take more than 2 micrograms at a time, the Office of Dietary Supplements explains.
What is the Recommended Dietary Allowance (RDI) for vitamin B12 (B12)?
For people over 14, the RDI for vitamin B12 is 2.4 mcg ( 1 ). Most people meet this requirement through diet.