What is hydroxocobalamin made from?

Hydroxocobalamin is the natural form of vitamin B12 and a member of the cobalamin family of compounds. Hydroxocobalamin, or another form of vitamin B12, are required for the body to make DNA. Hydroxocobalamin. Clinical data Chemical and physical data Formula C62H89CoN13O15P Molar mass 1346.377 g·mol− 1 3D model (JSmol) Interactive image 28 more rows

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Why is hydroxocobalamin preferred over cyanocobalamin?

For injections of vitamin B12 given in the UK, hydroxocobalamin is preferred to an alternative called cyanocobalamin. This is because hydroxocobalamin stays in the body for longer. Keeping this in consideration, what is the difference between 2.4 mcg and 1000 mcg? 2.4mcg is only approximately 1/250th of 1000mcg.

And another question, 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. And another question, is b12 level of 1500 too high? There is no consensus on the definition of high or elevated B12. Previous studies have chosen a variety of levels to represent high or very high B12 (pmol/l) levels. Some examples include: 664.219; 5131; 700 (high) and 1500 (very high) 11; and 601 (high) and 1000 (very high)10.

Regarding this, 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.