NOW Liquid Magnesium
Brand: NOW · Form: LIQUID, SUPPLEMENT FORM [E0165]
Our assessment
The evidence shows that while magnesium is a valuable mineral for many bodily functions, the specific data we have for this product is limited. Our assessment is based on the information available for the ingredient calcium, which is the only data provided. Without specific data for magnesium, we cannot make a strong claim about the benefits of this exact product. Data not available for magnesium-specific effects.
How it works
Based on the data provided, calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. Think of these processes as foundational for strong bones and proper muscle function. For this specific magnesium product, specific mechanism data is not available.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements [FDA data]. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Side effects from high calcium levels can include 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]. Data not available for magnesium-specific side effects or report counts.
Our recommendation
Because the data provided only covers calcium, we cannot make a confident recommendation for this specific magnesium product. You should consult with your healthcare provider before starting any new supplement. Data not available for a specific dosage or usage recommendation for this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 8.0 fl. Oz. 237.0 mL |
| 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