gnc herbal plus turmeric sport gnc gnc herbal plus turmeric supplement sport: helps improve joint function^* provides a highly absorbable turmeric clinically shown to help you walk faster and farther^* helps improve joint function^* vegetarian standardized extract blend gluten free, no sugar, no artificial colors, no artificial flavors, sodium free, no wheat, no soy, no dairy study: ^in a randomized double blinded trial, 90 healthy adults took 125mg of tamaflex or placebo twice daily for 90 days. those taking tamaflex had improved (i) joint comfort, stiffness and function, (womac) (ii) walking speed and distance, (iii) use of stairs, and (iv) range of motion in the joint. improvements were seen as early as 2 weeks for all outcomes but joint function (as early as 1 month).