Peanut Butter is not that great of a source of EFAs. It is mostly rich in monounsaturated fat. Though the monounsaturated fat in peanut butter is good fat it is not an EFA. EFA's are polyunsaturated fats, Omega-3, 6. If you want EFAs get some Udos Choice Oil or some Flax. Even Canola is a good source but get cold pressed unprocessed cannola if you do.