Dr. Clark Store Magnesium 300 mg
Brand: Dr. Clark Store · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that this product, Dr. Clark Store Magnesium 300 mg, provides 300 mg of magnesium per serving. However, based on the data provided, the primary ingredient listed is actually calcium, not magnesium. This is a critical discrepancy. For calcium, the data confirms it plays a role in bone mineralization and neuromuscular relaxation [NIH ODS]. You should be aware that this product's labeling may not match its actual ingredient profile based on the information available.
How it works
Think of calcium as a structural building block and a signaling molecule. It supports bone density and mineral deposition, which is essential for skeletal strength. Additionally, calcium supports muscle relaxation and nerve signaling, helping your nervous system communicate effectively [NIH ODS]. The intended magnesium in this product would typically support muscle and nerve function, but the provided data focuses on calcium's mechanisms.
Safety profile
The FDA has received a total of 592,059 adverse event reports for products in this category, though specific report counts for this exact product are not broken out [FDA data]. For calcium specifically, high 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]. Data not available for side effects of magnesium from the provided information.
Our recommendation
We cannot recommend this product based on the data provided. The label claims "Magnesium 300 mg," but the only ingredient data supplied is for calcium. You should verify the actual ingredient list on the bottle. Calcium supplements can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Consult your healthcare provider before taking this supplement, especially if you take any of these medications or have concerns about heart or kidney health. Data not available for a specific recommended dosage for this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Dr. Clark Store |
|---|---|
| Serving Size | |
| Contents | 100.0 Capsule(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