Disclosed are compositions comprising carbohydrate; lipid, comprising from about 0.25% to about 2.5 % lecithin by weight of total lipid; from about 90% to about 99.5% of intact protein by weight of total protein; and from about 0.5% to about 10% of at least one hydrolyzed protein selected from the group consisting of hydrolyzed casein protein and hydrolyzed whey protein; wherein the hydrolyzed protein has a degree of hydrolysis of between about 23% and about 90%, and wherein the compositions are nutritional powders. The nutritional powders provide improved oxidative stability and sensory performance.本發明揭示組合物,其包括碳水化合物;脂質,其包括佔總脂質重量約0.25%至約2.5%之卵磷脂;佔總蛋白質重量約90%至約99.5%之完整蛋白質;及約0.5%至約10%的至少一種水解蛋白質,其係選自由水解酪蛋白及水解乳清蛋白組成之群;其中該水解蛋白質具有介於約23%與約90%之間的水解度,且其中該組合物係營養粉末。該等營養粉末提供經改良的氧化安定性及感官性能。