Inadequacy of Protein Intake in Older UK Adults
Inadequacy of Protein Intake in Older UK Adults
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DOI：
10.3390/geriatrics5010006
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发表时间：
2020-03-01
期刊：
影响因子：
2.3
通讯作者：
Corfe, Bernard M.
中科院分区：
文献类型：
--
作者：
Morris, Susan;Cater, James D.;Corfe, Bernard M.
英国目前推荐的蛋白质摄入量为0.75 g/kg/天，然而，这一人群范围内的建议并不一定反映老年人维持肌肉蛋白质合成需求的改变，也不包括摄入时间的潜在影响。老年人的最佳肌肉蛋白质合成需要更高的摄入要求和超过25克阈值的蛋白质摄入分布，一天三次。这项研究旨在描述英国地区老年人的蛋白质摄入量，并将结果与建议进行比较。该研究重新评估了两个现有的数据集，其中包含南约克郡地区老年人的丰富饮食信息。数据来自256名年龄在65至89岁之间的成年人的食物日记（平均+/- SD 72.4 +/- 5.3岁）。使用Nutritics软件对摄取量和时间进行编码，并与推荐量进行比较。探讨了体重指数(BMI)、年龄和蛋白质摄入量之间的关系。不到50%的参与者符合目前英国的建议（0.75 g/kg/天），不到15%的参与者符合ESPEN的1.2 g/kg/天的年龄特定建议。只有一名参与者在三餐中达到了每餐25克的建议摄入量。这些发现表明，老年人没有达到维持肌肉蛋白质合成的建议。尽管如此，它还是指出了几个直接的改善机会，尤其是提高早晨的摄入量。
The current dietary recommendation for protein intake in the UK is 0.75 g/kg/day, however, this population-wide recommendation does not necessarily reflect altered requirements for older adults to maintain muscle protein synthesis, nor does it encompass the potential impact of intake timing. Optimal muscle protein synthesis in older adults requires both higher intake requirements and a distribution of protein intake above a 25 g threshold, three times across the day. This study aimed to describe the protein intake of older adults in a UK region and compare the results to recommendations. The study re-assessed two existing datasets with rich diet information for older adults in the South Yorkshire area. Data were extracted from food diaries of 256 adults aged between 65 and 89 years old (mean +/- SD 72.4 +/- 5.3 years). Quantity and timing of intake were coded using Nutritics software and compared to recommendations. The relationship between body mass index (BMI), age, and protein intake was explored. Fewer than 50% of the participants met current UK recommendations (0.75 g/kg/day) and fewer than 15% met the ESPEN 1.2 g/kg/day age-specific recommendation. Only one participant met the 25 g/meal recommendation across three meals. These findings suggest that the older adult population is not achieving recommendations to maintain muscle protein synthesis. Nonetheless it identifies several straightforward opportunities for improvement, notably elevation of morning intake.