Muscle metabolism and nutrition

Muscle metabolism research examines how cells build, break down, and recycle proteins in response to what we eat and how we move, with particular attention to the signaling pathways that decide whether muscle grows or wastes away. At the molecular level, amino acids — especially leucine — act as both building blocks and chemical signals that trigger muscle protein synthesis, meaning nutrition and biology are more tightly coupled than simple calorie counts suggest. Researchers are actively working out how factors like protein source, the timing of meals around exercise, and aging-related changes in anabolic sensitivity interact to determine outcomes in health and disease. Unresolved questions include how to optimize these variables for older adults who respond less readily to protein intake, and whether plant-based proteins can reliably match the anabolic effects of animal-derived sources.

Works

82,334

Total citations

1,590,147

Keywords

ProteinMetabolismExerciseNutritionAmino AcidsMuscle Protein Synthesis