Conjugated Linoleic Acid. Bioactive Engineered Lipid. CLA (Conjugated Linoleic Acid) is a naturally occurring, unsaturated (""Good"") fatty acid that is safe and side effect free. CLA 1000's unique ""bioactive engineered"" lipid profile has been shown in numerous research studies to promote favorable metabolic benefits. Taken daily, CLA 1000 supports positive metabolic activity ideal for those who are active, exercise regularly, follow a sensible diet and take the product consistently.