NOW Magnesium Citrate
Brand: NOW · Form: TABLET [E0155]
Our assessment
The evidence shows that while NOW Magnesium Citrate is a popular supplement, the specific data provided focuses on calcium rather than magnesium. We cannot confirm the benefits of this specific magnesium product from the available data. For calcium, which is listed in the data, the primary role is supporting bone density and neuromuscular function [NIH ODS].
How it works
Based on the data, calcium works through two key mechanisms. First, it supports bone mineralization, helping deposit minerals into your skeleton to maintain density. Second, it supports neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].
Safety profile
Data not available for this specific product's side effects. For calcium, FDA has received a total of 592059 adverse event reports across all supplements. Potential risks from high calcium intake include constipation, nausea, weight loss, abnormal heart rhythms, and a high risk of death from heart disease [FDA data] [NIH ODS]. Calcium can also reduce absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
You should be cautious. The data provided does not contain specific evidence for NOW Magnesium Citrate's effectiveness or safety. For calcium, keep your intake within recommended limits and take supplements separately from other medications by at least 2 hours [NIH ODS]. We cannot recommend this product based on the data available.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 100.0 Tablet(s) |
| 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