Rexall Naturalist B12 1500 mcg
Brand: Rexall Naturalist · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that Rexall Naturalist B12 1500 mcg is a straightforward supplement designed to support nerve health and energy metabolism. We are unable to provide a full assessment of this specific product because data for its listed ingredient, calcium, does not match the product name. The data provided indicates the product contains calcium, not vitamin B12.
How it works
Based on the ingredient data provided, calcium works through two primary mechanisms: bone mineralization — it supports bone density and mineral deposition — and neuromuscular relaxation — it supports muscle relaxation and nerve signaling [NIH ODS].
Safety profile
The FDA received a total of 592,059 adverse event reports across all dietary supplements. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS].
Our recommendation
Because the ingredient data labels this product as containing calcium rather than vitamin B12, we cannot recommend this specific product for its intended B12 purpose. If you are seeking a B12 supplement, look for one that lists methylcobalamin or cyanocobalamin as the active ingredient. For calcium, note that it can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Always consult your healthcare provider before starting a new supplement.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Rexall Naturalist |
|---|---|
| Serving Size | |
| Contents | 60.0 Tablet(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