To eat or to not eat feels like one of the biggest decisions to make before working out… especially before doing cardio. And, ...

If you like nothing more than waking up and heading straight out the door for an early-morning run without stopping to fuel up, then you practice fasted cardio. Or maybe you’ve just skipped a prerun ...

What are the pros and cons of skipping breakfast before a tough workout? We lay out the latest research behind fasted workouts. By Amy Roberts, C.P.T. Morning workouts are awesome: Aside from the ...

Should you work out on an empty stomach to help boost blood sugar benefits? Although fasted workouts are often promoted as a metabolic shortcut for improving insulin sensitivity and enhancing fat ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Fasted cardio is ...

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From sprints to incline walking, the data shows which workouts burned the most fat – and it's good news for runners ...