What all of this amounts to is, fish oil consumption in a healthy individual should probably be kept within a reasonable range, and additional supplementation with vitamin E is also a good choice. The amount of fish oil one takes should be dependent on both goals and the amount of EPA/DHA present in the fish oil. The optimal range for both safety and effectiveness in most healthy individuals is 1-4 g of EPA/DHA daily, and this amount shouldn't be exceeded without medical supervision. Most fish oils are standardized to 30% EPA/DHA, so this would be about 3-12 one gram caps daily. If the fish oil is standardized to a different amount the dosage should be changed accordingly, for example 2-8 caps of a 50% EPA/DHA product. Most of the benefits (other than possibly the change in body composition, for which there is presently little functional data) can be seen with 1-2 grams of EPA/DHA daily. Most fish oil capsules also contain vitamin E, but if they don't, a vitamin E supplement should be taken also.