Abstract: This invention relates to a weight control composition, preferably in the form of a capsule or tablet, comprising a mixture of guggul extract and at least one phosphate salt selected from calcium phosphate, potassium phosphate and sodium phosphate. The composition evidences synergistic activity in reducing body weight and percent body fat in mammals. The guggul extract/phosphate salt product also reduces plasma lipid levels and cholesterol in overweight hyperlipidaemic humans. The inventive composition may also contain at least one additional component selected from phosphatidylcholine, hydroxycitric acid and L-tyrosine.