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Many people start exercising with an empty stomach because it is said that if you do it you will burn fat faster than if you had some food in your stomach. It is actually proven to be right since having an empty stomach is associated with having low sugar levels and in consequence, the fat burning process is faster. The question many people might be asking to themselves is that if it is healthy to go and exercise with no ingestion of food. Well you all should get your own conclusion on whether you want to burn fat faster or the benefits that eating can give you.
It is proven that the fat burning starts after approximately 20 minutes of exercising. So what? Well that means you will be wasting 20 minutes of your energy before you start losing fat and an empty stomach organism cannot give you the energy that a person who ate something would have. That means that the workout of a person who eats would be more effective since it has the energy to exercise for longer.
Eating before exercising will give you many benefits such as working as a recovery booster, will give you the strength to stand more intense workouts and will help people not to feel nauseous and dizzy which happens to people who do not eat and exercise for a long time. Now, it is important to know that it doesn’t mean you will have a complete meal before going to the gym. I would recommend people to eat a banana since it brings a lot of potassium and it helps a lot, a yogurt, oatmeal or a sports drink; those are good options for you to choose from and enjoy your workout with more energy.

While I agree that exercising on an empty stomach will burn your fat reserves much quicker, I also feel that a person won't exercise as long or hard when they have an empty stomach. I always advise my clients to eat a small breakfast if they exercise in the morning. If you exercise in the afternoon or evening then do so after you have eaten. But also don't eat a large meal within an hour of exercising or you could suffer from stomach cramps.

It is good if you eat some food before your exercise because It can boost recovery and strength gains ans also It can help you sustain longer, more intense workouts.Early morning exercisers have an added benefit of having the rest of the day to eat, recover, and grow. Also, not eating right before going to bed can aid in muscle stimulus and growth.

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The effects were compared of exercise in the fasted state and exercise with a high rate of carbohydrate intake on intramyocellular triglyceride (IMTG) and glycogen content of human muscle. Using a randomized crossover study design, nine young healthy volunteers participated in two experimental sessions with an interval of 3 weeks. In each session subjects performed 2 h of constant-load bicycle exercise (∼ 75% An external file that holds a picture, illustration, etc. Object name is tjp0564-0649-mu1.jpg), followed by 4 h of controlled recovery. On one occasion they exercised after an overnight fast (F), and on the other (CHO) they received carbohydrates before (∼ 150 g) and during (1 g (kg bw)−1 h−1) exercise. In both conditions, subjects ingested 5 g carbohydrates per kg body weight during recovery. Fibre type-specific relative IMTG content was determined by Oil red O staining in needle biopsies from m. vastus lateralis before, immediately after and 4 h after exercise. During F but not during CHO, the exercise bout decreased IMTG content in type I fibres from 18 ± 2% to 6 ± 2% (P = 0.007) area lipid staining. Conversely, during recovery, IMTG in type I fibres decreased from 15 ± 2% to 10 ± 2% in CHO, but did not change in F. Neither exercise nor recovery changed IMTG in type IIa fibres in any experimental condition. Exercise-induced net glycogen breakdown was similar in F and CHO. However, compared with CHO (11.0 ± 7.8 mmol kg−1 h−1), mean rate of postexercise muscle glycogen resynthesis was 3-fold greater in F (32.9 ± 2.7 mmol kg−1 h−1, P = 0.01). Furthermore, oral glucose loading during recovery increased plasma insulin markedly more in F (+46.80 μU ml−1) than in CHO (+14.63 μU ml−1, P = 0.02). We conclude that IMTG breakdown during prolonged submaximal exercise in the fasted state takes place predominantly in type I fibres and that this breakdown is prevented in the CHO-fed state. Furthermore, facilitated glucose-induced insulin secretion may contribute to enhanced muscle glycogen resynthesis following exercise in the fasted state.

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Diet & Fitness