Look for supplements containing glucosamine sulfate, not glucosamine hydrochloride, as studies suggest superior absorption. Choose a product with a guaranteed purity level, often indicated as a percentage, specifying the absence of heavy metals and other contaminants. Third-party testing, verified by a reputable organization like NSF International or USP, ensures quality control.
Dosage and Form
Consider the dosage. Most studies use 1500mg of glucosamine and 1200mg of chondroitin daily. Opt for soft gels or capsules, offering better absorption than tablets. Check the label for other ingredients; avoid unnecessary fillers or additives. A reputable brand will clearly state its manufacturing process and source of ingredients.
Additional Factors
Pay attention to the source of glucosamine and chondroitin. Shellfish-derived glucosamine is common, but those with shellfish allergies should opt for a vegetarian source. Finally, compare prices per serving; don’t assume a higher price automatically means better quality. Thoroughly review labels, seeking clear, concise information.
