PureFormulas Vitamin B12 5,000 mcg
Brand: PureFormulas · Form: LOZENGE [E0174] On Market
Our assessment
The evidence shows that Vitamin B12 at 5,000 mcg is a high-dose supplement that may be useful for those with a diagnosed deficiency or absorption issues. For most people, however, this dose exceeds the typical daily need. Data on the specific ingredient in this product is limited, so we must rely on general safety principles.
How it works
Vitamin B12 is essential for nerve tissue health, brain function, and the production of red blood cells. It works as a cofactor in key metabolic processes, including DNA synthesis and energy production. The body absorbs only a small percentage of high oral doses, making 5,000 mcg generally safe even at this level [NIH ODS].
Safety profile
Data not available for this specific product formulation. The FDA has received a total of 592,059 adverse event reports across all supplement categories, but specific side effect counts for this product are not provided [FDA data]. High-dose B12 is generally considered safe, as the body excretes excess amounts through urine. However, if you have a history of kidney disease or certain blood disorders, consult your doctor before use.
Our recommendation
Start with a lower dose, such as 1,000 mcg, unless a blood test confirms a deficiency. You can safely take this product, but it is often unnecessary for healthy individuals. Choose a methylcobalamin form for better absorption if available [NIH ODS]. Always speak with your healthcare provider before starting a high-dose regimen.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | PureFormulas |
|---|---|
| Serving Size | |
| Contents | 60.0 Lozenge(s) |
| Market Status | On Market |
How to Read This Label
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