Are you what you eat?
Just because you could technically get this test done, Guest isn’t convinced it’s necessary if you’re not an elite athlete focusing on endurance or trying to manipulate your calories, especially because a lot of this fat burner versus sugar burner business is dependent on your diet.
“If I’m on a high-fat, low-carb diet, my body is going to start utilizing fat as an energy source, because that’s what I’m taking in,” she says. This shows your temporary fuel source. “Now moving up a gear or two as in easy cardio to faster running, cycling a hill, doing a circuit of weights – think breathing hard and high heart rate – requires carbohydrate as a fuel source. But don’t worry if you work hard, this does come off your body as fa. Fat simply does not have enough time nor the constant oxygen supply to break down fast enough at higher intensities of work.”