Natrol Melatonin 3 mg Fast Dissolve Strawberry Flavor

Our assessment

The evidence shows that melatonin is a commonly used supplement for sleep support, but the data on this specific Natrol product is limited. Our assessment is based on the ingredient, melatonin, and its general profile. For this product, the specific formulation details are not available beyond the label information provided.

How it works

Melatonin is a hormone your body naturally produces to regulate your sleep-wake cycle. Think of it as a master timing signal — it tells your body it is time to prepare for sleep. The 3 mg dose in this fast-dissolve form is designed to be absorbed quickly, which may help you fall asleep faster. Data on the specific mechanism for this product is not available beyond general knowledge.

Safety profile

FDA has received a total of 592,059 adverse event reports across all supplements. For this specific product, detailed side effect data is not available. General safety data from the NIH ODS indicates that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. 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].

Our recommendation

We recommend starting with the lowest effective dose, which is often 1 mg or less for many people. Because specific safety data for this Natrol product is not available, you should consult your healthcare provider before use, especially if you are taking any medications, as calcium supplements may reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

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