Is 1000 mcg the same as 2.4 mcg?

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2.4mcg is only approximately 1/250th of 1000mcg.

What does 1000 mcg B12 mean?

Lifelong vitamin B12 supplements may be required at doses between 100 and 1,000 micrograms. 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.

Is it OK to take 1000 mcg of B12 a day?

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 can I get 2.4 mcg of B12?

Top foods with B12 The average adult should get 2.4 micrograms (mcg) of vitamin B12 a day, according to the National Institutes of Health. Here are some of the best foods with B12: Clams, 3 ounces: 84 mcg. 100% fortified breakfast cereal (check the label), 1 serving: 6.

What does it mean 1000 mcg?

1000 mcg = 1 mg. Things that are reported in mcg are needed in very small amounts in the body.

What are the side effects of B12 1000 mcg?

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.

How many mcg of B12 should you have a day?

2.4 mcg Fish, shellfish, meat, eggs, and dairy products are good sources of vitamin B12. The amount that should be consumed on a daily basis is called the recommended dietary allowance (RDA). The RDA is 2.4 mcg daily for people 18 years and older. While pregnant, the RDA is 2.6 mcg daily.

What is a safe amount of vitamin B12 to take daily?

While breastfeeding, the RDA is 2.8 mcg daily. In children, the RDA depends on age. People over 50 years of age are advised to eat foods fortified with vitamin B12 or to take a vitamin B12 supplement. 25-100 mcg daily has been taken by mouth to maintain vitamin B12 levels in older adults.

Can you have 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.

How much vitamin B12 should a person have daily?

2.4 mcg/day How much vitamin B-12 should you take?

CategoryVitamin B-12: Recommended Dietary Allowance (RDA) in micrograms (mcg) For children under age 1, only an adequate intake (AI) is available
9-13 years1.8 mcg/day
14 years and up2.4 mcg/day
Pregnant women2.6 mcg/day
Breastfeeding women2.8 mcg/day

•Jan 24, 2021

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