Life Extension Methyl-Cobalamin 1 mg
Brand: Life Extension · Form: LOZENGE [E0174] On Market
Our assessment
The evidence shows that this supplement provides 1 mg of methylcobalamin, a bioactive form of vitamin B12. For individuals with a confirmed B12 deficiency or absorption issues, this can be a targeted and effective dose. Data not available for specific efficacy of this exact product for general wellness.
How it works
Think of methylcobalamin as a cellular fuel injector — it supports nerve health by helping to maintain the myelin sheath around your nerves and aids in red blood cell formation. It works as a cofactor for key enzymatic reactions in your body [NIH ODS].
Safety profile
FDA received 592,059 adverse event reports across all supplements. For this specific product, data not available. Calcium, a common co-ingredient in some supplements, can cause constipation, nausea, and abnormal heart rhythms at high levels [NIH ODS] [FDA data]. Always check for medication interactions, as calcium can reduce absorption of certain antibiotics and thyroid medication [NIH ODS].
Our recommendation
Start by having your vitamin B12 levels tested. If you are deficient, 1 mg of methylcobalamin is a reasonable starting dose under medical supervision. Do not take this supplement if you are also taking high-dose calcium without consulting your doctor, due to potential absorption issues [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Life Extension |
|---|---|
| Serving Size | |
| Contents | 60.0 Vegetarian 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