Nature's Harmony Sleep Tight Melatonin 1 mg
Brand: Nature's Harmony · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that the primary active ingredient in Nature's Harmony Sleep Tight Melatonin 1 mg is melatonin, but the data provided for this analysis is for calcium. For melatonin-specific data, information is not available. Based on the calcium data, this product would not be appropriate for sleep support. Our assessment: you should seek a product that contains melatonin for sleep, and the data here does not support using this formulation for that purpose.
How it works
Calcium works through bone mineralization to support bone density and neuromuscular relaxation to support muscle relaxation and nerve signaling [NIH ODS]. These mechanisms are not directly related to sleep onset or sleep quality. For sleep, melatonin is the hormone that regulates your circadian rhythm, but specific data on melatonin's mechanism is not available in the provided information.
Safety profile
Based on the calcium data, 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 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]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. For melatonin-specific side effects, data is not available.
Our recommendation
We cannot recommend Nature's Harmony Sleep Tight Melatonin 1 mg based on the data provided, as all safety and mechanism information pertains to calcium, not melatonin. If your goal is sleep support, look for a product that provides melatonin at a clinically studied dose. Before starting any new supplement, consult your healthcare provider, especially if you take medications that interact with calcium, such as levothyroxine or certain antibiotics [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