It is tested to be free of potentially harmful levels of contaminants (i.e. mercury, heavy metals, PCS's, dioxins, and other contaminants).Each serving may typically provide the following naturally occurring fatty acids:Omega-3 Fatty Acids: 690 mg (EPA: 144 mg, DHA: 96 mg)Omega-6 Fatty Acids: 600 mg (GLA: 160 mg)Omega-9 Fatty Acids: 420 mgOther fatty acids, saturated fats, phospholipids, etc: 690