Regular physical exercise maintains systemic insulin sensitivity throughout the day, independent of meal timing.

Study: Plasma Sulphur-Containing Amino Acids, Physical Exercise and Insulin Sensitivity in Overweight Dysglycemic and Normal Weight Normoglycemic Men

People who exercise regularly become better at using insulin to control blood sugar, and this improvement lasts all day — even if they eat at different times. The study shows exercise makes the body’s sugar-burning system work better, no matter when you eat.

Study: Exercise-induced increase in muscle insulin sensitivity in men is amplified when assessed using a meal test

When people exercise, their muscles get better at soaking up sugar from food, even after they eat. This study shows that exercised muscles handle a meal way better than non-exercised ones, meaning exercise helps keep blood sugar stable no matter when you eat.

Study: Meal timing effects on insulin sensitivity and intrahepatic triglycerides during weight loss

Even when people ate most of their food in the morning or evening, their body’s ability to handle sugar stayed the same — meaning when you eat doesn’t mess with your insulin sensitivity. This supports the idea that regular exercise keeps your body good at using insulin, no matter what time you eat.

Study: A single session of resistance exercise enhances insulin sensitivity for at least 24 h in healthy men

Even one workout can help your body use insulin better for a whole day, no matter when you eat. This means exercise keeps your body responsive to insulin all day long.