金字塔倒过来了？美国公布最新“干饭”指南，哪些要点值得我们的餐桌借鉴？

Core Viewpoint - The new dietary guidelines for 2025-2030 emphasize a return to natural foods, encouraging high-nutrient ingredients, home cooking, and reduced reliance on highly processed foods, reflecting the current issue of caloric excess rather than deficiency [1][2]. Group 1: Structural Changes in Guidelines - The new guidelines adopt an "inverted pyramid" structure, placing high-quality proteins, dairy, healthy fats, and fresh fruits and vegetables at the top, while whole grains are moved to the tip [2][4]. - This structural change highlights the dominant role of high-quality protein and significantly reduces the proportion of carbohydrates in energy intake [4]. Group 2: Recommendations on Food Choices - The guidelines strongly encourage the selection of nutrient-dense natural foods such as meat, eggs, dairy, and fresh produce, while drastically reducing the intake of processed foods and avoiding high-sugar foods and beverages [4][6]. - The new guidelines state that no added sugars should be consumed, especially prohibiting any added sugars for children under 10 years old, a stricter stance compared to the previous recommendation of limiting added sugars to 10% of total daily energy [4][6]. Group 3: Fat and Protein Intake Guidelines - The guidelines specify that saturated fat should not exceed 10% of total daily energy, recommending daily dairy intake of 250-500 milliliters for the general population, and 500-750 milliliters for pregnant women, nursing mothers, and adolescents [5][7]. - The recommended protein intake for adults has increased to 1.2-1.6 grams per kilogram of body weight per day, up from 0.8 grams, with specific recommendations for different demographics [6][7]. Group 4: Controversies and Individualization - There are some controversies regarding the application of the guidelines, suggesting that while the guidelines provide a general direction, food choices should be individualized [6]. - The guidelines recommend limiting red meat intake to no more than 70 grams per day and 500 grams per week to avoid excessive saturated fat and cholesterol intake [6].