When people switch to a low-carb, high-fat diet, their bodies can burn fat for energy during harder workouts that would normally require carbs, whereas on a normal diet this switch happens at easier exercise intensities.

Athletes who follow low-carb high-fat diets can burn fat much faster during exercise—over 1.5 grams per minute—compared to athletes on regular high-carb diets who only burn 0.3 to 0.6 grams per minute.

When you train at a moderate pace designed to burn fat, your body learns to use less sugar and more fat for energy during workouts.

Scientists thought your body mostly burns fat at rest and during easy exercise, but new measurements show your body actually burns a lot of carbohydrate too - around 40-60% of the energy you use.

Doing a tough weight workout before jogging or cycling helps your body burn more fat while you're doing the cardio.

Whether you're fit or out of shape, male or female, young or older, working out before breakfast still burns more fat than after eating — as long as you're not sprinting at max effort.