尽管饮食指导建议增加全谷物的消费,同时限制精制和/或浓缩谷物食品的消费,新兴研究表明,某些精制谷物可能是健康饮食模式的一部分。自2015年粮食研究领域的膳食指南发布以来,召集了一个科学专家小组来审查已发布的数据。其中包括营养摄入量,饮食质量,富集/强化,以及与体重相关结果的关联。基于一维圆桌讨论,专家小组达成共识,即1)全谷物和精制谷物可以对饮食模式做出有意义的营养贡献,2)全谷物和精制谷物食品有助于营养密度,3)谷物的强化和浓缩在美国饮食中提供营养充足方面仍然至关重要,4)没有确凿的科学证据表明,精制谷物食品与超重和肥胖有关,5)科学文献中存在关于谷物食品和健康的差距。
Although dietary guidance recommends increasing consumption of whole grains and concurrently limiting consumption of refined and/or enriched grain foods, emerging research suggests that certain refined grains may be part of a healthy dietary pattern. A scientific expert panel was convened to review published data since the release of 2015 dietary guidance in defined areas of grain research, which included nutrient intakes, diet quality, enrichment/
fortification, and associations with weight-related outcomes. Based on a 1-d roundtable discussion, the expert panel reached
consensus that 1) whole grains and refined grains can make meaningful nutrient contributions to dietary patterns, 2) whole and refined grain foods contribute nutrient density, 3)
fortification and enrichment of grains remain vital in delivering nutrient adequacy in the American diet, 4) there is inconclusive scientific evidence that refined grain foods are linked to overweight and obesity, and 5) gaps exist in the scientific literature with regard to grain foods and health.