MegaFood Magnesium
Brand: MegaFood · Form: TABLET [E0155]
Our assessment
Our assessment is that while this product contains calcium, the evidence for its benefits is clear but must be weighed against significant safety considerations. For most adults, the data shows that calcium supports bone density and neuromuscular relaxation [NIH ODS]. However, you should be aware that this supplement is not without risk, and you need to consider your total calcium intake from all sources.
How it works
Think of calcium as a structural building block for your skeleton. It works through bone mineralization to support bone density and mineral deposition. It also plays a key role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].
Safety profile
FDA has received a total of 592,059 adverse event reports for this product category [FDA data]. The data from NIH ODS notes that high calcium intakes might increase the risk of heart disease and prostate cancer. 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]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Our recommendation is to proceed with caution. Do not exceed the recommended daily allowance without consulting your healthcare provider. Be especially careful if you take any of the medications listed, as calcium can interfere with their absorption [NIH ODS]. If you have a history of kidney stones, heart disease, or prostate cancer, seek professional medical advice before starting this supplement. Data not available on specific dosage for this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | MegaFood |
|---|---|
| Serving Size | |
| Contents | 60.0 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