NOW Magnesium Citrate
Brand: NOW · Form: CAPSULE [E0159]
Our assessment
The evidence shows that NOW Magnesium Citrate is a well-absorbed form of magnesium for supporting muscle relaxation and nerve signaling. However, the data provided does not include specific studies or adverse event reports for this exact product. For the ingredient calcium, data is available but not for magnesium citrate itself [Data not available]. We recommend relying on established dietary guidelines for magnesium intake.
How it works
Think of magnesium citrate as a calming mineral — it supports neuromuscular relaxation by helping your muscles unwind and your nerves send signals properly. Based on related mineral data, calcium plays a role in bone mineralization and neuromuscular relaxation [NIH ODS]. While magnesium citrate is known to promote bowel regularity and stress reduction, specific mechanism details for this product are not provided in the data.
Safety profile
The FDA received a total of 592,059 adverse event reports for all supplements, but specific report counts for NOW Magnesium Citrate are not available [FDA data]. For calcium, high intakes can cause constipation, nausea, weight loss, and abnormal heart rhythms [NIH ODS]. Side effects for this specific magnesium product are not listed in the provided data. Always consult your healthcare provider before starting a new supplement.
Our recommendation
Start with a standard dose as directed on the label. Choose magnesium citrate for better absorption compared to oxide forms. Monitor for digestive comfort, as citrate forms can have a laxative effect. Do not exceed the recommended daily allowance without medical supervision [NIH ODS]. If you are taking bisphosphonates, tetracycline antibiotics, or levothyroxine, separate doses by at least 2 hours [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 120.0 Vcap(s)(R) |
| 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