NOW Melatonin 3 mg
Brand: NOW · Form: CAPSULE [E0159]
Our assessment
The evidence shows that while this product is labeled as a 3 mg melatonin supplement, the provided data does not contain any specific information about melatonin itself. Data not available for melatonin's efficacy or mechanism from the provided sources. However, the supplement contains calcium as an ingredient, and the data on calcium is clear: it is essential for bone health, but supplementation requires careful attention to dosing and interactions [NIH ODS].
How it works
Think of calcium as a structural builder for your bones and a signal regulator for your nerves. It supports bone mineralization and helps with neuromuscular relaxation [NIH ODS]. If you are taking this product expecting sleep support from melatonin, please note that no data on melatonin's mechanism is available in this review.
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High levels in the blood and urine 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]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Given the lack of data on the melatonin component, this product's primary documented benefit is from calcium. Data not available for a specific recommended dose of this product. You should not exceed 2,500 mg of calcium from all sources daily. Consult your doctor before starting this supplement, especially if you take prescription medications or have a history of kidney problems or heart disease [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 60.0 Capsule(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