Core Viewpoint - The release of the updated "Dietary Guidelines for Americans" has been postponed to early 2026 due to the recent federal government shutdown, which is the longest in U.S. history lasting 43 days from October 1 to November 12 [1] Group 1: Dietary Guidelines Update - The updated guidelines are jointly prepared by the Department of Health and Human Services and the Department of Agriculture and are published every five years [1] - The new version is expected to include recommendations on saturated fats, ultra-processed foods, and adjustments related to dairy intake [1] - The guidelines aim to change the dietary culture in the U.S. and reduce the high obesity rates [1] Group 2: Government Shutdown Impact - The postponement of the guidelines is attributed to the federal government shutdown caused by Congress's failure to pass a new temporary funding bill [1] - The shutdown has affected various government operations, delaying important public health recommendations [1]

Core Viewpoint - The 2025 National Nutrition Week in China emphasizes the theme "Balanced Eating and Exercise for Healthy Weight: A National Action" highlighting the importance of maintaining a healthy weight through proper diet and regular exercise [1] Group 1: Obesity Trends - Obesity rates increase starting from the age group of 24 to 29, peaking in middle-aged men (ages 55 to 59) and elderly women (ages 65 to 69) [1] - The overall prevalence of overweight and obesity varies across different age groups, indicating a significant age-related trend [1] Group 2: Factors Contributing to Weight Gain - Multiple factors contribute to weight gain in middle age, including increased energy intake, reduced physical activity, muscle loss, and decreased metabolic rate [1] - A decline in metabolic rate means that the same amount of food consumed leads to more energy being stored in the body [1] Group 3: Dietary Recommendations - Maintaining a healthy weight primarily relies on diet, with excessive fat intake increasing the risk of various diseases and leading to obesity [1] - Healthy weight loss should focus on reducing fat rather than losing bone, muscle, or body water [1] Group 4: Exercise Recommendations - Experts recommend developing long-term healthy eating habits, reducing high-fat and high-sugar foods, and minimizing the consumption of sugary drinks and fried foods [2] - It is advised to engage in daily exercise or at least three sessions of 30 minutes of exercise per week to increase muscle mass and enhance energy metabolism [2]