AOR Advanced Orthomolecular Research Premium Methyl B12 - 5mg

Our assessment

Our assessment: This product provides 5 mg of methylcobalamin (vitamin B12), which is a very high dose. While vitamin B12 is generally safe, the evidence shows that the specific data for this supplement is limited. For general health, the amount far exceeds what most people need. However, for individuals with a diagnosed B12 deficiency or absorption issues, this high dose may be prescribed by a physician. Data not available to confirm the specific benefits of this exact dosage for a general audience.

How it works

Vitamin B12 is essential for your body’s most fundamental processes. It acts as a coenzyme in DNA synthesis and red blood cell formation, and it plays a critical role in maintaining the health of your nerve cells [NIH ODS]. The methylcobalamin form in this product is one of the active, naturally occurring forms of B12, which your body can use directly for these functions.

Safety profile

The overall FDA adverse event database contains 592,059 total reports for all supplements. Specific adverse event data for this exact product is not available. However, vitamin B12 is considered very safe, even at high doses, as the body typically excretes excess amounts through urine. The provided data on calcium interactions and high intake risks do not apply to this B12 product [NIH ODS].

Our recommendation

We recommend you do not take this supplement without first consulting your doctor. A standard daily dose for B12 is around 2.4 mcg for most adults [NIH ODS]. The 5,000 mcg (5 mg) dose here is more than 2,000 times that amount. This level is typically reserved for specific medical conditions like pernicious anemia or following bariatric surgery. For a general health boost, a standard multivitamin or a lower-dose B12 supplement is a more appropriate and evidence-based choice.

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide