Hi, I heard few times that when you do cardio first you burn proteins then carbohydrates and fat at the end.
eli5 How does it works ? Does is make sense o have cardio for 15 minutes or I should do cardio for one hour ?
In: 11
## Not entirely accurate
The body uses all three macronutrients (proteins, carbohydrates, and fats) for energy during exercise, but the relative contribution of each fuel source depends on several factors, including exercise intensity, duration, and your individual metabolism.
During low-intensity exercise, such as walking or light jogging, the body primarily uses fat as a fuel source. As the exercise intensity increases, the body starts to use more carbohydrates to meet the increased energy demand. However, even during high-intensity exercise, the body still uses some fat for energy.
Regarding the duration of cardio exercise, it depends on your fitness goals and individual preferences. A shorter cardio session, such as 15 minutes, can still be effective for improving cardiovascular health and burning some calories. However, for weight loss or endurance training, longer cardio sessions, such as 30 minutes to an hour, may be more beneficial.
It’s important to incorporate different types of exercise into your routine, including strength training and flexibility exercises, can also have important health benefits and help you reach your fitness goals. It’s generally recommended to aim for at least 150 minutes of moderate-intensity exercise per week, which can be divided into shorter sessions if needed.
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