Major Calcium 600 mg + D3 200 IU
Brand: Major · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that a supplement containing 600 mg of calcium and 200 IU of vitamin D3 can be a convenient way to support your bone health. However, this specific combination provides a relatively low amount of vitamin D compared to the standard 600 IU daily recommendation for most adults [NIH ODS].
How it works
Think of calcium as the structural building block for your bones, supporting bone density and mineral deposition. The vitamin D3 in this supplement acts as a master regulator, helping your body absorb that calcium effectively for bone mineralization and supporting neuromuscular relaxation [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all products in this category. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High calcium levels can cause constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data].
Our recommendation
You will likely need to take an additional vitamin D supplement to meet the full 600 IU daily RDA. Be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Discuss this supplement with your healthcare provider before starting, especially if you take any of those medications.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Major |
|---|---|
| Serving Size | |
| Contents | 150.0 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