Source Naturals - Tonalin 1000 CLA - 120 Softgels Source Naturals Tonalin 1000 CLA may help reduce body fat. Tonalin (TM) Conjugated Linoleic Acid (CLA) is a fatty acid derived from safflower oil. Tonalins potential benefits are cited in U.S. Patent 5554646 which states that CLA plays a role in r