This invention relates to a method of improving CNS maturation in an infant by administering a mixture of natural tocopherols, wherein the composition contains an optimum tocopherol profile similar to that found in human breast milk, and can encompass a tocopherol profile from early stage to transitional to mature human breast milk. For ease of administration and maximized efficacy, the optimized mixture of natural tocopherols are typically delivered in an oral dosage form with a limited level of non-RRR alpha-tocopherols to maximize efficacy of the RRR alpha-tocopherol on stimulating post-natal CNS development.