Jarrow Formulas Melatonin Sustain
Brand: Jarrow Formulas · Form: TABLET [E0155]
Our assessment
The evidence shows that the key ingredient in Jarrow Formulas Melatonin Sustain is not melatonin, but calcium. Based on the data provided, this product appears to be a calcium supplement. For calcium, the data confirms its role in bone mineralization and neuromuscular relaxation [NIH ODS]. However, you should be aware of important safety considerations before using this product.
How it works
Think of calcium as a structural and signaling mineral. It supports bone density and mineral deposition, which helps keep your skeleton strong. It also supports muscle relaxation and nerve signaling, which helps your body function smoothly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplements. Specifically for calcium, some research suggests that 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].
Our recommendation
Given that the data on this product’s label is listed as "See label," specific dosage information is not available. For calcium, do not exceed the tolerable upper intake level, and be cautious if you have a history of kidney stones or heart disease. Always take calcium supplements with food and separate them from medications listed in the interactions by at least two hours [NIH ODS]. Consult your healthcare provider before starting this supplement, especially if you take any prescription medications.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Jarrow Formulas |
|---|---|
| Serving Size | |
| Contents | 120.0 Sustain(TM) 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