Nature's Harmony Sleep Tight Melatonin 3 mg
Brand: Nature's Harmony · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that the Nature's Harmony Sleep Tight Melatonin 3 mg product is formulated with melatonin, but the primary data we have on the key ingredient calcium indicates it is not intended for sleep support. Our assessment is that this product’s label lists a mineral with a different primary purpose. For sleep-specific concerns, you should look for a product that contains melatonin as its active ingredient. Data not available for melatonin-specific studies or mechanisms in the provided data.
How it works
Think of calcium as a structural and signaling powerhouse for your body. It supports bone mineralization and density, and it also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS]. However, this mechanism is not directly linked to sleep onset or regulation. The provided data does not contain information on how melatonin or this specific product works for sleep.
Safety profile
FDA received a total of 592,059 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]. Side effect report counts for calcium alone are not available in the provided data. Calcium can also reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Based on the data provided, we cannot recommend this product for sleep. The key data describes calcium, a mineral for bone health, not melatonin for sleep. If you are seeking a sleep aid, you should look for a product with a clearly labeled melatonin or other sleep-specific ingredient. Always check with your healthcare provider before starting any new supplement, especially if you take prescription medications [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Harmony |
|---|---|
| Serving Size | |
| Contents | 90.0 Capsule(s) |
| 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