Comerford Kevin, Lawson Yolanda, Young Michal, Knight Michael, McKinney Kevin, Mpasi Priscilla, Mitchell Edith
California Dairy Research Foundation, Davis, CA, United States.
Baylor University Medical Center, Dallas, TX, United States.
J Natl Med Assoc. 2024 Apr;116(2 Pt 2):211-218. doi: 10.1016/j.jnma.2024.01.026. Epub 2024 Feb 16.
Given the complex relationships that many Black individuals have with dairy foods, due to issues with lactose intolerance or other cultural factors, the National Medical Association has made considerable efforts to examine the role that dairy foods play in the health and well-being of Black Americans. Over the last two decades, the National Medical Association and its partners have produced multiple reports on the value of including adequate milk and dairy foods in the diets of Black Americans. These publications have highlighted the impact that inadequate consumption of dairy foods and nutrients have on chronic disease risks. Past publications have also provided evidence-based recommendations for the proper diagnosis and management of lactose intolerance. This new series of evidence reviews focuses on dairy's role in improving nutrition and health among Black Americans across the life course and covers an extensive amount of new research that highlights additional health disparities and provides further evidence-based strategies for the management of lactose intolerance. Much like the 2020-2025 Dietary Guidelines for Americans, this work utilizes a life course approach to better address dairy intake on health outcomes for different ages and life stages: 1) pregnancy, fetal development, and lactation, 2) infants, toddlers, and young children, 3) older children and adolescents, 4) adults, and 5) geriatric populations. Overall, the findings and conclusions from this series of evidence reviews continue to indicate that higher dairy intake is associated with reduced risk for many of the most commonly occurring deficiencies and diseases impacting each life stage, and that Black Americans would receive significantly greater health benefits by increasing their daily dairy intake levels to meet the national dietary recommendations than they would from continuing to fall short of these recommendations. However, these recommendations must be considered with appropriate context and nuance as the intake of different dairy products can have different impacts on health outcomes. For instance, vitamin D fortified dairy products and fermented dairy products like yogurt - which are low in lactose and rich in live and active cultures - tend to show the greatest impacts for reducing disease risk across the life continuum, while whole-fat dairy foods may be most beneficial in early life for optimal brain development, and more protein-rich options may be most beneficial in later life to help maintain muscle mass and function.
鉴于许多黑人个体因乳糖不耐受问题或其他文化因素,与乳制品有着复杂的关系,美国国家医学协会已做出相当大的努力来研究乳制品在美国黑人健康和福祉中所起的作用。在过去二十年里,美国国家医学协会及其合作伙伴发布了多份关于美国黑人饮食中纳入适量牛奶和乳制品的价值的报告。这些出版物强调了乳制品和营养素摄入不足对慢性病风险的影响。过去的出版物还为乳糖不耐受的正确诊断和管理提供了基于证据的建议。这一系列新的证据综述聚焦于乳制品在改善美国黑人一生的营养和健康方面的作用,涵盖了大量新研究,这些研究突出了更多的健康差异,并为乳糖不耐受的管理提供了更多基于证据的策略。与《2020 - 2025年美国人膳食指南》非常相似,这项工作采用生命周期方法,以更好地解决不同年龄和生命阶段的乳制品摄入量对健康结果的影响:1)怀孕、胎儿发育和哺乳期,2)婴儿、幼儿和儿童,3)大龄儿童和青少年,4)成年人,以及5)老年人群体。总体而言,这一系列证据综述的研究结果和结论继续表明,较高的乳制品摄入量与降低许多影响每个生命阶段的最常见营养素缺乏症和疾病的风险相关,并且美国黑人通过将每日乳制品摄入量提高到符合国家膳食建议的水平,将比继续低于这些建议获得显著更大的健康益处。然而,由于不同乳制品的摄入对健康结果可能有不同影响,这些建议必须结合适当的背景和细微差别来考虑。例如,添加了维生素D的乳制品以及像酸奶这样乳糖含量低且富含活性培养物的发酵乳制品,在降低整个生命连续过程中的疾病风险方面往往显示出最大的影响,而全脂乳制品在生命早期对最佳大脑发育可能最有益,更多富含蛋白质的选择在生命后期可能最有利于帮助维持肌肉质量和功能。