GNC Melatonin 5 mg

Our assessment

The evidence shows that GNC Melatonin 5 mg is a supplement intended to support sleep, but the available data on this specific product is limited. Our assessment is based on general ingredient information, as specific clinical studies for this exact formulation are not provided. You should be aware that the FDA has received a total of 592,059 adverse event reports across all supplement categories, though data specific to this product is not available [FDA data].

How it works

Melatonin is a hormone that your body naturally produces to regulate your sleep-wake cycle. The 5 mg dose in this product is intended to help signal to your body that it is time to sleep. Think of it as a timing signal for your internal clock, helping you fall asleep more quickly. The data provided does not include a specific mechanism of action for this brand, so this general understanding applies [NIH ODS].

Safety profile

Safety data specific to GNC Melatonin 5 mg is not available from the provided information. Based on general supplement safety, you should be cautious with any supplement. The FDA has received 592,059 total adverse event reports for supplements, but specific side effects and their report counts for melatonin are not listed in the provided data. Data not available for specific side effects of this product [FDA data].

Our recommendation

We recommend you start with the lowest effective dose for sleep support, and 5 mg may be higher than necessary for some individuals. Always consult your healthcare provider before starting any new supplement, especially if you are taking other medications or have a health condition. Choose a product from a reputable brand and monitor how you feel. Data not available to make a stronger recommendation for this specific product [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