There are other dietary sources significantly more robust in Omega - 3s; for example, a 4 - oz serving of wild salmon has 2 full grams. (thefitfork.com)
A small 4 oz serving also provides a whopping 1500 mg of omega - 3 essential fats that the body must have and can not create on its own. (grassfedgirl.com)
A 4 - oz serving not only weighs less than the apple, but has a much lower GI (14), and provides an even lower GL of 2. (nutritiondata.self.com)