During prolonged exercise, there is a gradual shift from carbohydrate to fat as an energy source. during prolonged exercise, there is a gradual shift from carbohydrate to fat as an energy source. a. true b. false

This would be true, for example if I just ate some food my body will use the energy from that food first, but if you haven’t eaten in a whole day and decide to exercise your body will instead use the fat as energy, this is what causes weight loss