How to tell if a supplement is quality?

Look for products from reputable brands that follow Good Manufacturing Practices (GMP). Third-party certifications (e.g. USP Verified, NSF International, ConsumerLab) indicate that the product has been tested for identity, strength, and sometimes contaminants. Check the label for the amount of active ingredient per serving and whether it matches what you need. Avoid products with exaggerated claims or that promise to treat diseases. Store supplements as directed (e.g. away from heat and moisture). If you take medications or have health conditions, ask your pharmacist or doctor before choosing a new supplement. This is educational only; not medical advice.