Jarrow Formulas Methyl B-12 Tropical Flavor 2500 mcg
Brand: Jarrow Formulas · Form: LOZENGE [E0174]
Our assessment
The evidence shows that this product contains 2500 mcg of methylcobalamin (vitamin B12) per serving. For most adults, this is a high dose, as the recommended daily allowance is 2.4 mcg for adults [NIH ODS]. For individuals with a diagnosed B12 deficiency or absorption issues, such as those with pernicious anemia or following a strict vegan diet, this high dose may be appropriate. However, for the general population without these specific needs, this level of intake is often unnecessary, and the excess is simply excreted in urine [NIH ODS].
How it works
Vitamin B12 is a critical nutrient that helps keep your body's nerve and blood cells healthy. Methylcobalamin, the form used in this product, is the active coenzyme form that your body can use immediately for DNA synthesis and to help prevent megaloblastic anemia [NIH ODS]. Think of it as a key that unlocks the process of converting food into usable energy for your cells.
Safety profile
Data not available for the specific side effects of this product. The FDA has received a total of 592,059 adverse event reports across all supplements, but specific report counts for methyl B12 are not provided in this data [FDA data]. Vitamin B12 is generally considered very safe, even at high doses, because the body does not store large amounts and excretes excess. However, without specific adverse event data for this ingredient, we cannot detail exact report counts.
Our recommendation
Start by confirming your need for a 2500 mcg dose with a healthcare provider and a blood test. If you have a diagnosed deficiency or an absorption issue, this product can be effective. For general wellness, a much lower dose (e.g., 2.4 mcg to 100 mcg) is usually sufficient [NIH ODS]. If you are taking this product, take it as directed and be aware that your urine may turn a bright yellow color, which is a harmless sign of excess B12 being eliminated.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Jarrow Formulas |
|---|---|
| Serving Size | |
| Contents | 100.0 Lozenge(s) |
| Market Status | Off 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