Source Naturals Melatonin 3 mg
Brand: Source Naturals · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that calcium is a critical mineral for bone health, but the data on supplementation requires careful consideration. For most adults, the goal is to meet the RDA through diet first, as high-dose supplements carry potential risks [NIH ODS].
How it works
Think of calcium as a structural building block for your bones and a signal messenger for your muscles and nerves. It supports bone density and mineralization, and helps regulate muscle relaxation and nerve signaling throughout your body [NIH ODS].
Safety profile
Data not available for specific side effects of this product. However, high calcium intakes from supplements may increase the risk of heart disease and prostate cancer. Very high levels in the blood can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. The FDA has received 592,059 total adverse event reports across all supplements [FDA data].
Our recommendation
We recommend you aim to get your calcium from food sources first. If you do choose a supplement, take it with food and be aware it can reduce absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS]. Do not exceed the tolerable upper intake level without medical supervision.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Source Naturals |
|---|---|
| Serving Size | |
| Contents | 120.0 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