Natural Factors Stress-Relax Melatonin 5 mg
Brand: Natural Factors Stress-Relax · Form: TABLET [E0155]
Our assessment
The evidence shows that this product contains 5 mg of melatonin, but the data provided does not include any specific studies or health claims for melatonin itself. Therefore, we cannot assess its efficacy for stress or relaxation based on the information available. For the ingredient calcium, which is listed in the NIH ODS data, our assessment is that it plays a clear role in bone health, but the data does not connect calcium to stress relief or sleep support [NIH ODS].
How it works
Think of calcium as a key structural component for your skeleton. It supports bone mineralization and density, and it also helps with neuromuscular relaxation and nerve signaling [NIH ODS]. However, the provided data does not describe how melatonin or calcium would specifically work to reduce stress or promote relaxation in the context of this product.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplement categories [FDA data]. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer. High levels of calcium in the blood 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]. Data on side effects for melatonin from the provided FDA data is not available.
Our recommendation
Because the provided data does not contain any studies, journal citations, or specific health outcomes for melatonin at 5 mg, we cannot recommend this product for stress or relaxation. If you are considering a calcium supplement, be aware of potential interactions: calcium can reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. For personalized advice, consult your healthcare provider.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Natural Factors Stress-Relax |
|---|---|
| Serving Size | |
| Contents | 180.0 Chewable Tablet(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