Tag: 2000 mcg b12

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Is 2000 mcg of B12 Too Much to Take Daily?

Dec 19, 2025 •

2 min read

The Recommended Dietary Allowance (RDA) for vitamin B12 is only 2.4 micrograms (mcg) for adults, making a 2000 mcg dose seem exceptionally high. However, B12 is a water-soluble vitamin, meaning the body excretes what it doesn't need, and high doses are often used therapeutically under medical supervision.

Is it Okay to Take 2 000 mcg of B12 a Day?

Oct 12, 2025 •

4 min read

Vitamin B12 is a water-soluble nutrient, and due to its low toxicity, no Tolerable Upper Intake Level (UL) has been established by health authorities. This leads many to question: is it okay to take 2 000 mcg of B12 a day, especially when the Recommended Dietary Allowance (RDA) is significantly lower for most adults?