近日，美国农业部（USDA）发布了新版《美国人膳食指南》（Dietary Guidelines for Americans），引发公众和营养学界的广泛讨论。该指南每五年更新一次，旨在为公众提供科学、实用的饮食建议。2025-2030年版草案中，首次明确提出限制添加糖摄入量至每日总热量的6%以下（此前为10%），并强调减少酒精摄入，建议男性每日饮酒不超过一杯。此外，指南更加强调全谷物、蔬菜、水果和优质蛋白的摄入，同时提醒避免高钠、高饱和脂肪的加工食品。值得注意的是，新版指南在制定过程中曾因食品工业游说而备受争议，部分专家批评其对红肉和乳制品的建议过于宽松。尽管如此，整体方向仍体现了向植物性饮食倾斜的趋势，并鼓励民众根据自身文化背景和饮食习惯做出健康选择。社交媒体上，“干饭”一词被网友戏用于形容认真吃饭、关注营养，此次指南更新也被调侃为“官方干饭指南”。总体而言，新版指南试图在科学证据与现实可行性之间取得平衡，为美国民众提供更具操作性的健康饮食框架。
Recently, the U.S. Department of Agriculture (USDA) released a draft of the updated Dietary Guidelines for Americans, sparking widespread discussion among the public and nutrition experts. Published every five years, these guidelines aim to provide science-based, practical dietary advice. The 2025–2030 draft notably proposes lowering the recommended limit for added sugars to less than 6% of daily calories—down from the previous 10%—and advises reducing alcohol consumption, suggesting no more than one drink per day for men.The new edition also places greater emphasis on whole grains, vegetables, fruits, and high-quality protein sources while cautioning against highly processed foods high in sodium and saturated fats. Controversy arose during the guideline’s development due to lobbying by the food industry; some experts criticized its relatively lenient stance on red meat and dairy products. Nevertheless, the overall direction reflects a shift toward plant-forward eating patterns and encourages individuals to make healthy choices aligned with their cultural backgrounds and personal preferences.On social media, Chinese netizens humorously refer to mindful eating as ‘gan fan’ (literally ‘eating dry rice’), and the updated guidelines have been jokingly dubbed the ‘official gan fan guide.’ Overall, the new guidelines strive to balance scientific evidence with real-world feasibility, offering Americans a more actionable framework for healthy eating.
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