Vitamin World Extra Strength Melatonin 5 mg

Our assessment

The evidence shows that this product contains a relatively high dose of melatonin. For many adults, starting with a lower dose, such as 1 mg to 3 mg, is often recommended to assess your individual response. Data not available on the specific benefits of this exact 5 mg dose for general sleep support. [NIH ODS]

How it works

Think of melatonin as your body’s natural sleep signal. It is a hormone that helps regulate your circadian rhythm, telling your brain it is time to prepare for sleep. Taking a supplement like this can help you fall asleep faster, particularly if your natural production is low due to age, shift work, or jet lag. [NIH ODS]

Safety profile

Data not available on specific adverse event reports for this product. General FDA data for melatonin supplements includes reports of headache, dizziness, and drowsiness. [FDA data]

Our recommendation

Start with a lower dose, such as 1 mg, and only increase if needed. Take this 5 mg product 30–60 minutes before you plan to sleep. Use it only for short-term sleep issues. Data not available on long-term safety at this dose. [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