Nutrient timing has become a popular topic in fitness, but there is often confusing information about it. Some believe that exercising on an empty stomach helps burn more fat, but experts say there is no strong evidence to support this. According to dietitian Abby Langer, working out without eating does not make a big difference in performance or calories burned. However, eating too soon before exercising, especially foods high in fat, protein, or fiber, can cause stomach discomfort. Langer recommends eating carbohydrates before a workout and giving your body enough time to digest to avoid stomach problems. After exercising, eating a balanced meal is important to help muscles recover and restore energy.

The idea of an “anabolic window,” where eating protein within an hour of exercise is believed to improve muscle growth, has also been questioned. Experts like Krista Austin explain that the body absorbs nutrients over a longer period, so there is no need to rush to eat protein right after a workout. Instead, Austin suggests eating about 25 to 30 grams of protein with each meal to support muscle recovery and overall health. For those doing long activities like marathon training, eating snacks high in carbohydrates during exercise can help maintain energy. Both Langer and Austin stress that maintaining a balanced and healthy diet is more important than focusing too much on nutrient timing.