BulkSupplements.com Magnesium Citrate
Brand: BulkSupplements.com · Form: POWDER [E0162] On Market
Our assessment
The evidence shows that this product contains calcium, which is critical for bone health. However, the data provided does not confirm the presence of magnesium citrate in the analyzed ingredient list. Our assessment is that you should verify the label on your specific product to ensure it contains the intended active ingredient. For calcium specifically, the RDA for most adults is 1,000 to 1,200 mg daily, but getting this from food is often preferable [NIH ODS].
How it works
Think of calcium as a structural builder — it supports bone mineralization and density by depositing into your skeletal system. It also plays a role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].
Safety profile
FDA received 592,059 adverse event reports for products in this category. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. Very high levels 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] [FDA data]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend you first confirm the product label to ensure it contains magnesium citrate as intended. For calcium, aim to meet your needs through dietary sources first. If you use a supplement, avoid exceeding 2,000 mg total daily from all sources and take it with food. Always separate calcium supplements from thyroid medication or antibiotics by at least 2 hours [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | BulkSupplements.com |
|---|---|
| Serving Size | |
| Contents | 250.0 Gram(s) 8.8 Ounce(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