NutriScience ArthriAid Omega NutriScience ArthriAid Omega is a dietary supplement for good joint, ligament and mobility function. It contains glucosamine and chondroitin, which support natural cartilage production. It also contains omega-3 and -6 fatty acids, which are important essential fatty acids for joints. The dietary supplement provides the necessary building blocks to support the body's natural cartilage production.