Product Label

Jarrow Formulas Melatonin Sustain

Brand: Jarrow Formulas · Form: TABLET [E0155]

Our assessment

The evidence shows that Jarrow Formulas Melatonin Sustain is a sleep-support supplement. For the specific ingredient calcium, data on its role in bone mineralization and neuromuscular relaxation is available [NIH ODS]. However, specific data on melatonin itself is not provided in this data set. Our assessment is that this product may be useful for sleep support, but you should be aware of the general safety profile of its ingredients.

How it works

Think of calcium as a structural and signaling mineral. It supports bone density and mineral deposition, which is critical for skeletal strength. It also aids in neuromuscular relaxation, helping your muscles and nerves function properly [NIH ODS]. The mechanism of melatonin for sleep is not detailed in the provided data.

Safety profile

FDA received a total of 592,059 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]. Data on side effects specific to melatonin from this dataset is not available.

Our recommendation

Start by consulting your healthcare provider before taking any new supplement. If you choose to use this product, be mindful of your total calcium intake from all sources, including food and other supplements. Monitor for any of the side effects listed, such as constipation or nausea. Do not exceed recommended dosages [NIH ODS] [FDA data].

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandJarrow Formulas
Serving Size
Contents120.0 Tablet(s)
Market StatusOff 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

Original Label

View Full DSLD Label (PDF)

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