Seeking Health Magnesium Plus
Brand: Seeking Health · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that this product contains calcium, a mineral with established roles in bone health and nerve function. However, the data on calcium supplementation is nuanced, and high intakes carry notable risks. Our assessment is that you should only use this supplement if you have a confirmed need, as exceeding safe levels can be harmful.
How it works
Think of calcium as a foundational building block for your body. It supports bone mineralization and density, ensuring your skeleton stays strong. At the same time, calcium plays a key role in neuromuscular relaxation, helping your muscles relax and nerves signal properly after they fire [NIH ODS].
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, 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 [FDA data]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Additionally, calcium can reduce the absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data for other ingredients in this product is not available.
Our recommendation
Do not take this supplement without first consulting your doctor. Have your calcium levels tested and review your dietary intake before adding a supplement. If you take any prescription medications, especially those listed above, discuss timing and potential interactions carefully with your pharmacist or physician [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Seeking Health |
|---|---|
| Serving Size | |
| Contents | 100.0 Vegetarian Capsules |
| 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