Douglas Laboratories Melatonin 1 mg
Brand: Douglas Laboratories · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that this product, Douglas Laboratories Melatonin 1 mg, contains only one ingredient listed in our data: Calcium. However, the product name suggests it is a melatonin supplement. Based strictly on the data provided, we can only assess the Calcium component. For a 1 mg melatonin product, the available data on Calcium is not directly relevant to the expected sleep-supporting function of melatonin. Data on melatonin itself is not available in the provided data set.
How it works
Based on the ingredient data for Calcium, it functions primarily in bone mineralization, supporting bone density and mineral deposition, and neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS]. This mechanism is unrelated to sleep regulation, which is the primary use of melatonin. For the intended purpose of sleep support, specific data on melatonin's mechanism is not available.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements in the database [FDA data]. For the Calcium ingredient, side effects from high levels include constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. High calcium intakes might also increase the risk of heart disease and prostate cancer [NIH ODS]. Data on side effects specific to melatonin is not available.
Our recommendation
Because the provided data only allows us to analyze the Calcium content, and not the melatonin component for which this product is named, we cannot make a specific recommendation regarding its use for sleep. For the Calcium component, be aware that it can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS]. For the intended sleep support purpose, data on melatonin is not available, so consult your healthcare provider for guidance on appropriate sleep aids.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 60.0 Dissolvable Tablet(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