A method for enhancing neurological health and development in a subject involving administering to the subject a nutritional composition including no greater than about 7 g/100 kcal of a fat or lipid source; no greater than about 7 g/100 kcal of a protein or protein equivalent source; at least about 5 g/100 kcal of a carbohydrate; and at least about 9 mg/100 kcal of inositol, wherein the ratio of exogenous inositol to inherent inositol is at least 50:50.本發明關於一種用於提高個體之神經健康及發育之方法,其包含投予個體包括下列者之營養組成物:不超過約7克/100千卡之脂肪或脂質來源;不超過約7克/100千卡之蛋白質或蛋白質等效物來源;至少約5克/100千卡之碳水化合物;及至少約9毫克/100千卡之肌醇,其中外源性肌醇對先天性肌醇之比為至少50:50。