HEART FUNCTION, HAIR, SKIN, NAILS & VISION SUPPORT- EPA & DHA contribute to the normal function of the heart with a daily intake of at least 250 mg EPA+DHA.- Zinc contributes to the maintenance of normal hair, nails, skin & vision. Plus Kenk O® is a source of highly concentrated Omega-3 from pharmaceutical grade fish oils, with vegetable Omega-3, -6, -7 en -9 fatty acids & zinc.