Should I Work Out on an Empty Stomach is a question that many people ask. Science has not always agreed. In the past the answer to the questions of Should I Work Out on an Empty Stomach, was Yes. Over the past 5-10 years’ science has shown us something different.
An entire meal before working out is a no-no. Digesting a full meal and exercise simply do not mix. When you work out, you want your blood flow to be focused on your muscles and extremities. When you eat a meal prior to exercise, your body has to focus its blood flow to the digestive system so it can process the food. So if you do eat a full meal it is recommended that you wait for 1 ½ to 2 ½ hours prior to exercising.
When you have a small amount of food in your stomach or a pre-workout supplement, it will be well into the digestive process 30 minutes later when you start working out and it will have charged up your metabolism. Therefore, you will burn more calories during your exercise versus having a sluggish metabolism. A study published in the Journal of Sports Nutrition and Exercise Metabolism, states that when you have a small amount of food or a high quality pre-workout supplement in your system you will burn more calories because it allows you to have a greater output during your exercise and it will have revved up the metabolism. This fuel helps keep the blood sugar levels more even throughout your exercise, which helps keep your metabolism from shifting, which in turn keeps you burning more fat.
The question of Should I Work Out on an Empty Stomach is really a question of the past. Timing your pre-exercise feeding or using a small amount if you are just starting will keep you at your best. The general rule if you have a full meal, is to wait. If you are just getting your day started and want to get that workout done, have 100-150 calories or a pre-workout supplement to get you going.