Fasted workouts: do they burn more fat? The claim is out there - that exercising on an empty stomach will help shed those extra pounds faster than a meal before hitting the gym.
But does it really pay off when it comes to burning fat, or are we just talking about improving our overall fitness routine? According to Javier Gonzalez, a nutrition and metabolism expert at the University of Bath, there's some truth to the idea that exercising fasted can kickstart the fat-burning process.
"When you exercise, your body is always burning a mix of fuels - mainly carbohydrates and fat," he explains. "If you've fasted overnight, you'll generally burn more fat and less carbohydrate than if you'd eaten breakfast, especially one high in carbs."
However, that doesn't mean fasted workouts are the secret to shedding pounds quickly. To lose weight, you need to be in an energy deficit - burning more calories than you consume.
In terms of overall metabolic health, research suggests training in a fasted state can have some benefits. "Fasted training seems to encourage muscles to move glucose out of the bloodstream," Gonzalez notes. "So it can improve blood sugar control, especially after meals."
But these benefits are largely related to endurance exercise like jogging or cycling, not high-intensity activities like sprint intervals.
The truth is, fasted workouts aren't going to give you a magic solution for weight loss - but they might be worth trying as part of your fitness routine. The key is to start small and listen to your body. If you feel light-headed or dizzy, it's time to refuel and take a break.
Gonzalez advises aiming for 15-20 minutes of fasted exercise to begin with, and gradually increasing the duration over time. "The most important thing is to do the exercise," he says.
But does it really pay off when it comes to burning fat, or are we just talking about improving our overall fitness routine? According to Javier Gonzalez, a nutrition and metabolism expert at the University of Bath, there's some truth to the idea that exercising fasted can kickstart the fat-burning process.
"When you exercise, your body is always burning a mix of fuels - mainly carbohydrates and fat," he explains. "If you've fasted overnight, you'll generally burn more fat and less carbohydrate than if you'd eaten breakfast, especially one high in carbs."
However, that doesn't mean fasted workouts are the secret to shedding pounds quickly. To lose weight, you need to be in an energy deficit - burning more calories than you consume.
In terms of overall metabolic health, research suggests training in a fasted state can have some benefits. "Fasted training seems to encourage muscles to move glucose out of the bloodstream," Gonzalez notes. "So it can improve blood sugar control, especially after meals."
But these benefits are largely related to endurance exercise like jogging or cycling, not high-intensity activities like sprint intervals.
The truth is, fasted workouts aren't going to give you a magic solution for weight loss - but they might be worth trying as part of your fitness routine. The key is to start small and listen to your body. If you feel light-headed or dizzy, it's time to refuel and take a break.
Gonzalez advises aiming for 15-20 minutes of fasted exercise to begin with, and gradually increasing the duration over time. "The most important thing is to do the exercise," he says.