According to the National Institutes of Healt h, most fish oil studies have involved the use of 300 to 3, 000 mg of the essential fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA).
If you want omega-3s for your heart, read the fine print and look for products with EPA or DHA. Kashi says people don't get enough omega-3 and that it makes no specific health claims.