Question

During prolonged fasting, in what sequence are the following organic compounds used up by the body ?

• A. First carbohydrates, next fats and lastly proteins
• B. First carbohydrates, next proteins and lastly lipids
• C. First proteins, next lipids and lastly carbohydrates
• D. First fats, next carbohydrates and lastly proteins

Answer 1

The correct option is A First carbohydrates, next fats and lastly proteins

During prolonged fasting, first carbohydrates are used up then fats and proteins are used at the last. Carbohydrate and fat metabolism can easily produce energy. Carbohydrates are said to give all the instant energy to the body. If carbohydrates are not available body will use fat reserves. Lastly, body burns protein.
So, the correct answer is-First carbohydrates, next fats and lastly proteins