Natrol Melatonin 3 mg

Our assessment

The evidence shows that while calcium is essential for bone health, the specific product you asked about — Natrol Melatonin 3 mg — does not contain calcium as an ingredient. Data on calcium itself indicates it is a critical mineral for bone mineralization and nerve signaling [NIH ODS]. However, for Natrol Melatonin 3 mg specifically, the active ingredient is melatonin, not calcium. Without ingredient data for this specific product beyond its label, we cannot assess its calcium content.

How it works

Calcium supports bone density through mineral deposition and helps with neuromuscular relaxation and nerve signaling [NIH ODS]. For melatonin, which is the active ingredient in your product, the mechanism involves regulating sleep-wake cycles. However, data on melatonin's specific mechanism is not provided in your data set.

Safety profile

For calcium, some research suggests that high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium 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]. FDA received a total of 592,059 adverse event reports across all supplements, but specific report counts for melatonin or calcium alone are not available in the provided data [FDA data].

Our recommendation

For the Natrol Melatonin 3 mg product, data on its specific ingredients is not available beyond the label. If you are seeking a calcium supplement, be aware that calcium can reduce absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Because your product is melatonin, not calcium, we recommend consulting your healthcare provider for guidance tailored to your health needs.

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