Major Calcium & Magnesium + Zinc
Brand: Major · Form: TABLET [E0155]
Our assessment
The evidence shows that calcium is essential for bone health, but this product's specific formula must be evaluated carefully. For the general adult, the RDA for calcium is 1,000 mg daily, and for magnesium it is 310–420 mg daily, though exact amounts in this supplement are not specified in the provided data [NIH ODS].
How it works
Think of calcium as the structural building block for your bones and teeth, supporting bone density through mineralization. It also plays a role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS]. Magnesium and zinc support these processes, though specific mechanisms for those are not detailed in the data provided.
Safety profile
FDA received 592,059 total adverse event reports across all supplements, but specific report counts for this product are not available. High calcium intake may increase the risk of heart disease and prostate cancer. Side effects from excessive calcium include constipation, nausea, poor muscle tone, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Calcium can also reduce absorption of medications like bisphosphonates, tetracycline and fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Do not exceed 2,000 mg of calcium per day from all sources combined. Take calcium supplements with food to improve absorption. If you take medications for thyroid conditions, osteoporosis, or infections, separate this supplement by at least 2 hours. Data on the exact amounts of magnesium and zinc in this product is not available, so consult your pharmacist before starting [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Major |
|---|---|
| Serving Size | |
| Contents | 100.0 Tablet(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