conjugated linoleic acid (cla) is a well established supplement for those seeking a leaner physique. , supports lean muscle goals , provides 80% active isomers , naturally sourced from safflower,nature\'s best sport offers a world class range of premium, uk made supplements.conjugated linoleic acid (cla) is now a popular supplement and has been used in numerous research studies. it is a naturally occurring fatty acid present in our diet in the form of beef and full fat dairy produce. however, modern farming methods and the move away from meat consumption has greatly reduced most people\'s intake. some researchers believe that modern day diets fail to provide enough with the average modern day diet providing as little as 200mg, when an intake of 3000mg (3g) might be a better target.