NOW Liquid Magnesium with Trace Minerals
Brand: NOW · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
The evidence shows that the calcium in NOW Liquid Magnesium with Trace Minerals supports bone health and muscle function, but you should be aware of significant risks and medication interactions. Data on the specific magnesium and trace mineral blend in this product is limited, so we rely on the calcium data provided [NIH ODS].
How it works
Think of calcium as a structural builder and signal regulator. It supports bone mineralization and density, and it helps your muscles relax and nerves signal properly. These mechanisms are essential for daily movement and long-term skeletal health [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all supplements. For calcium specifically, high intake is linked to risks including poor muscle tone, constipation, nausea, weight loss, extreme tiredness, abnormal heart rhythms, and an increased risk of death from heart disease. High calcium levels may also raise the risk of prostate cancer and heart disease [FDA data] [NIH ODS].
Our recommendation
Before taking this supplement, check your total calcium intake from food and other supplements to avoid exceeding safe levels. If you take bisphosphonates, tetracycline or fluoroquinolone antibiotics, levothyroxine, or phenytoin, separate the supplement from these medications by at least two hours to prevent absorption issues [NIH ODS]. Start with the lowest effective dose and consult your doctor if you have kidney concerns or a history of heart disease.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 8.0 fl. Oz. 237.0 mL |
| 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