The difference between fast carbon and slow carbon mainly lies in the slow absorption of slow carbohydrates, which alleviates the influence on insulin level; Carbohydrate is absorbed quickly, which can quickly increase insulin level and provide energy for the body.

3. Easily absorbed carbohydrate foods such as mashed potatoes and bananas are ideal foods after training. They can be quickly digested and absorbed by the body, thus improving insulin levels. Insulin can prevent protein from decomposing, and deliver amino acids to muscle tissue. Simply put, fast carbon has a high glycemic index, so it is recommended to eat before fitness, while slow carbon is the opposite, suitable for eating after fitness.