As Thais become increasingly health-conscious—and protein shakes, grilled chicken, and high-protein snacks dominate supermarket aisles—a new wave of research suggests that excess protein consumption may carry more dangers than benefits, contradicting popular trends and social media advice. Recent findings, highlighted by comments from longevity and nutrition experts, warn against overeating protein, especially from animal sources, and offer nuanced advice on the healthiest intake for different age groups (nypost.com).
The latest scientific insights indicate that while protein is crucial for muscle maintenance and basic biological functions, too much of it—particularly from red meat, eggs, and dairy—can significantly elevate levels of insulin-like growth factor 1 (IGF-1), a hormone involved in cell growth and metabolism regulation. According to the chief executive of an international nutrition company, chronically elevated IGF-1 has been linked to accelerated aging and increased risk of serious diseases, including various cancers, Type 2 diabetes, and cardiovascular conditions. For adults, the risks outweigh the short-term muscle gains often encouraged by fitness culture.