Tag: Megadose b12

The recommended daily amount (RDA) of vitamin B12 for an adult is just 2.4 micrograms (mcg). Supplemental amounts, however, can be significantly higher, sometimes reaching thousands of micrograms. What is considered a high dose of B12 is often in the range of 1,000 mcg or more, particularly when used therapeutically to address deficiencies.

The recommended daily allowance (RDA) for vitamin B12 for adults is only 2.4 micrograms, yet many supplements contain significantly higher amounts, such as 5000 mcg. This can cause confusion, leading people to ask: is 5000 mcg of B12 too much per day?

Vitamin B12 is a water-soluble vitamin, meaning your body excretes any excess through your urine, which is a key reason that taking high oral doses like 3000 mcg is generally considered safe for most people. While the recommended daily intake for adults is only 2.4 mcg, much higher doses are often used for therapeutic purposes, especially to correct deficiencies.

Vitamin B12 is a water-soluble nutrient, meaning the body excretes what it doesn't need, making an overdose through diet highly unlikely. Yet, concerns persist about high levels and health issues, leading many to ask: can too much B12 cause high blood pressure? This article explores the evidence.