Vitamin World Melatonin 3 mg

Our assessment

Our assessment: Melatonin is a popular sleep aid, but the evidence for 3 mg doses is mixed. Data not available on the specific formulation of Vitamin World Melatonin 3 mg. The general data on melatonin shows it can help with jet lag and sleep-onset insomnia, though results vary by individual [NIH ODS].

How it works

Think of melatonin as a natural sleep signal — your body produces it in response to darkness to regulate your sleep-wake cycle. Taking a 3 mg supplement may help you fall asleep faster by raising your blood levels of this hormone [NIH ODS].

Safety profile

FDA received 1,549 adverse event reports for melatonin supplements. Side effects include headache (210 reports), dizziness (98 reports), and nausea (85 reports) [FDA data]. Long-term safety data beyond 6 months of use is not available [NIH ODS].

Our recommendation

Start with the lowest effective dose, often 0.5 mg to 1 mg, rather than 3 mg. Take it 30–60 minutes before bedtime. If you experience morning drowsiness, reduce your dose. Consult a doctor before use if you have an autoimmune condition or take blood thinners [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