Can you overdose on b12

Can You Overdose On B12. While megadoses of up to 2000 mcg are considered safe in treating B12 deficiency its always best to avoid excessive amounts of any vitamin especially when its not needed. Medical researchers have discovered that the body only absorbs 2 of a 500mg dose. For this reason a vitamin B12 overdose is unlikely. Approximately 56 percent of a 1mcg oral dose of vitamin B12 is actually absorbed.

So the answer is no you can not overdose on B12 vitamins. The answer is yes. A high-dose B complex supplement with 1000 mcg of B-12 hurt rather than helped people with type 1 or type 2 diabetes and advanced kidney disease resulting in a worsening of kidney function and an increase in the risk of heart attack stroke and death. But is it possible to overdose with B12. Medical researchers have discovered that the body only absorbs 2 of a 500mg dose. Certain vitamins can harm you when taken in excess specifically fat-soluble vitamins like A and K which will build up in your fat stores.

An overdose of vitamin B can initiate or worsen the existing problem of insomnia.

Vitamin B12 is an important vitamin for nerve function DNA production cell metabolism and red blood cell formation. Vitamin B12 however is water soluble and will be flushed out in your urine if taken in excess. When you have overdosed on vitamin B12 you may experience a number of side effects. Approximately 56 percent of a 1mcg oral dose of vitamin B12 is actually absorbed. In fact studies show that for those who are deficient in the nutrient taking up to 2000 micrograms per day is safe. How long does B 12 stay in your body.