Puritan's Pride Magnesium 250 mg
Brand: Puritan's Pride · Form: SUPPLEMENT FORM, OTHER [E0172] On Market
Our assessment
The evidence shows that Puritan's Pride Magnesium 250 mg is a supplement intended to support bone health and muscle function. However, based on the data provided, the active ingredient listed in the available information is actually calcium, not magnesium. We must rely strictly on the data for calcium. Data not available for magnesium specifically.
How it works
Calcium acts as a master regulator for your body's structural and signaling systems. It supports bone density and mineral deposition, and it helps your muscles relax and your nerves send signals properly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports for supplements in general. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. Very high levels 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]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Given the data discrepancy between the product label and the ingredient data provided, we cannot confidently recommend this product for magnesium supplementation. If you are seeking a calcium supplement, discuss your intake with your healthcare provider to avoid exceeding safe levels. Always check with your pharmacist about potential interactions with your medications [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Puritan's Pride |
|---|---|
| Serving Size | |
| Contents | 100.0 Coated Caplet(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