NutriScience, LLC, East Norriton, PA 19403, USA.
Nutrition Impact, LLC, Battle Creek, MI 49014, USA.
Nutrients. 2024 Jun 6;16(11):1779. doi: 10.3390/nu16111779.
Beef is an important source of high-quality protein and several micronutrients, including iron, zinc, and B vitamins. We determined beef intake and its relationship with intakes of nutrients and their adequacy using 24 h dietary recall data from 5868 older adults. Usual intakes from foods were determined using the National Cancer Institute method, and the percent of the population below the estimated average requirement or above adequate intake was estimated. A high percentage of older adults did not meet nutrient recommendations for vitamin D (96%), choline (96%), vitamin E (84%), potassium (70%), calcium (63%), magnesium (60%), vitamin C (46%), vitamin A (39%), zinc (21%), vitamin B (19%), and folate (15%). About 68% of older adults were beef consumers with a mean intake of 56 g/day. Beef consumers had higher ( < 0.05) intakes of energy, protein, calcium, iron, phosphorus, selenium, sodium, zinc, thiamin, riboflavin, niacin, vitamin B, and choline, and a higher ( < 0.05) proportion met nutrient recommendations for protein, calcium, copper, zinc, thiamin, folate, and vitamin B than non-consumers. Consumers of fresh, ground, and processed beef also had generally higher intakes and lower inadequacies of many nutrients depending on the beef type. In conclusion, older adults generally had poor nutrient adequacy from their diets, while beef consumers had higher nutrient intakes and adequacy for certain key nutrients, which are inherently generally available from beef or from foods consumed with beef.
牛肉是高质量蛋白质和几种微量营养素的重要来源,包括铁、锌和 B 族维生素。我们通过对 5868 名老年人的 24 小时膳食回忆数据,确定了牛肉的摄入量及其与营养素摄入量和充足性的关系。使用国家癌症研究所的方法确定了食物中的常规摄入量,并估计了低于估计平均需求量或高于充足摄入量的人群百分比。很大一部分老年人无法满足维生素 D(96%)、胆碱(96%)、维生素 E(84%)、钾(70%)、钙(63%)、镁(60%)、维生素 C(46%)、维生素 A(39%)、锌(21%)、维生素 B(19%)和叶酸(15%)的营养建议。约 68%的老年人是牛肉消费者,平均摄入量为 56 克/天。牛肉消费者的能量、蛋白质、钙、铁、磷、硒、钠、锌、硫胺素、核黄素、烟酸、维生素 B 和胆碱摄入量较高(<0.05),且蛋白质、钙、铜、锌、硫胺素、叶酸和维生素 B 的摄入量符合营养建议的比例较高(<0.05)。新鲜、磨碎和加工牛肉的消费者通常也有更高的许多营养素摄入量和更低的不足率,具体取决于牛肉类型。总之,老年人的饮食普遍存在营养不足的问题,而牛肉消费者的某些关键营养素摄入量和充足性更高,这些营养素通常可以从牛肉或与牛肉一起食用的食物中获得。