NOW Melatonin 1 mg
Brand: NOW · Form: TABLET [E0155]
Our assessment
The evidence shows that NOW Melatonin 1 mg is a supplement intended to support sleep, but the data provided does not contain specific information about melatonin itself. Our assessment is based on the ingredient calcium, which is listed in the NIH ODS data. For calcium, the data shows it supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, without specific melatonin data, we cannot provide a complete assessment of this product.
How it works
Based on the data provided, calcium works as a master regulator for bone health by supporting bone density and mineral deposition, and it also supports muscle relaxation and nerve signaling [NIH ODS]. For melatonin specifically, data on its mechanism is not available in the provided information.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements [FDA data]. For calcium specifically, the data indicates that high intakes might increase the risk of heart disease and prostate cancer, and high blood levels 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 [NIH ODS]. Data on side effects specific to melatonin is not available.
Our recommendation
Our recommendation is to consult with a healthcare provider before starting any new supplement, including NOW Melatonin 1 mg. For calcium, be aware that it can reduce the absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Without specific data on melatonin, we cannot provide a dosage recommendation. Data not available for melatonin-specific benefits or risks.
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