Natrol Liquid Melatonin 10 mg Berry Natural Flavor
Brand: Natrol · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
The evidence shows that while calcium is essential for your health, the specific product you asked about — Natrol Liquid Melatonin 10 mg Berry Natural Flavor — contains melatonin, not calcium. Our assessment is based on the ingredient listed on the label. For calcium, the data is clear: it supports bone density and muscle relaxation, but high intakes carry significant risks [NIH ODS].
How it works
Think of calcium as a structural builder for your bones and a signal messenger for your nerves. It supports bone mineralization and helps your muscles relax after contracting [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all supplement products. For calcium specifically, high levels in your 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]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
Our recommendation
If you are taking Natrol Liquid Melatonin 10 mg, the active ingredient is melatonin, not calcium. For calcium, do not exceed the recommended dietary allowance without medical supervision. Be aware that calcium supplements can reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data not available for specific interactions with melatonin.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Natrol |
|---|---|
| Serving Size | |
| Contents | 2.0 fl. Oz. 60.0 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