Hall Kathryn L, Denda Caroline E, Morris Melanie, Yeung Helen
Clinical Nutrition Department, Sunnybrook Health Sciences Centre, Toronto, ON.
Can J Diet Pract Res. 2010 Spring;71(1):49-52. doi: 10.3148/71.1.2010.49.
Dietary vitamin D intake was assessed among residents in a long-term care (LTC) facility, so that recommendations could be made about vitamin D supplementation.
Three-day tray audits were completed for all meals and snacks, including nutritional supplements (Boost and/or high-protein pudding). Total daily and three-day vitamin D intake was calculated for each resident, and the total sample was compared with the recommended Adequate Intake (AI) of 600 IU. Vitamin D content was calculated using the Canadian Nutrient File and product labels. Resident charts were reviewed for micronutrient supplements and diagnoses.
The daily average vitamin D available to and consumed by 30 residents was 414 IU and 295 IU, respectively. Those provided with nutritional supplements received an average of 480 IU and consumed 357 IU, while those without received an average of 245 IU and consumed 207 IU. Thirty-three percent of residents were diagnosed with osteoporosis, osteoarthritis, and falls and/or fractures. Vitamin D micronutrient supplementation varied from above 600 IU (43%) to below 600 IU (30%) to no supplementation (27%).
None of the study participants met the recommended AI of 600 IU through dietary sources alone. Study results suggest that all LTC residents require vitamin D micronutrient supplementation of at least 400 IU to achieve the recommended AI of 600 IU.
评估长期护理（LTC）机构居民的膳食维生素D摄入量，以便就维生素D补充剂提出建议。
完成了对所有餐食和零食（包括营养补充剂，如益力多和/或高蛋白布丁）的三日餐盘审核。计算了每位居民的每日和三日维生素D总摄入量，并将总样本与推荐的600国际单位适宜摄入量（AI）进行比较。使用加拿大营养数据库和产品标签计算维生素D含量。查阅居民病历以了解微量营养素补充剂和诊断情况。
30名居民可获得并摄入的维生素D日均量分别为414国际单位和295国际单位。接受营养补充剂的居民平均摄入量为480国际单位，摄入量为357国际单位；未接受营养补充剂的居民平均摄入量为245国际单位，摄入量为207国际单位。33%的居民被诊断患有骨质疏松症、骨关节炎以及跌倒和/或骨折。维生素D微量营养素补充量从高于600国际单位（43%）到低于600国际单位（30%）再到未补充（27%）不等。
没有一名研究参与者仅通过饮食来源达到推荐的600国际单位适宜摄入量。研究结果表明，所有长期护理机构居民都需要补充至少400国际单位的维生素D微量营养素，以达到推荐的600国际单位适宜摄入量。
