The invention pertains to a method of treating or preventing pressure ulcers, comprising enterally administering to a subject in need thereof a composition comprising proteins, carbohydrates, fats, arginine or equivalents thereof, ascorbic acid equivalents and a-tocopherol equivalents, wherein arginine or equivalents thereof is administered in a daily amount of 3-15 g, ascorbic acid equivalents are administered in a daily amount of 180-840 mg and a-tocopherol equivalents are administered in a daily amount of 50-400 mg.