The RDA (Recommended Daily Allowance) is designed to prevent malnutrition, not to support optimum health let alone brain health. The Mega Men is to catch all of the odds and ends that cannot be taken individually and are often missing in our diets. The extra Bs are the most important, B-12, niacin, thiamine. The Omega 3 fish oil is important. The anti-oxidants fight the oxidative stress the injured brain endures.