Nowadays, many men who exercise have a misunderstanding, that is, they think that sugar should be properly supplemented during exercise to improve their athletic ability. In fact, it is wrong to do so, which is easy to cause side effects and bring adverse effects to your fitness. 1, too much sugar intake will affect the absorption of calcium (calcium-containing food) and relatively reduce the intake of other nutrients, thus causing malnutrition. 2, too much sugar can easily lead to obesity, because too much sugar will be converted into fat in the body. In addition, excessive intake of sugar increases blood viscosity and circulation, which will affect the function of the heart and make the muscles stiff, which is extremely unfavorable to fitness and exercise. In addition, eating too much sugar will increase triglycerides (oily food) in the blood, which will lead to cardiovascular diseases. 5. If a large amount of sugar is ingested in a short period of time, the sugar will enter the blood and make the blood sugar (blood sugar food) too high, because the osmotic effect of sugar will make the water enter the cavity from the stomach wall and dilute it, thus affecting the emptying of the stomach, and then causing abdominal discomfort, dizziness, nausea and other discomfort. Tip: How do fitness people supplement their own sugar? Fitness, athletes in general training, do not need extra sugar, starch in the staple food of three meals is enough, but in endurance sports (long-distance running, marathon, etc. ), due to the large consumption of sugar, in order to accelerate the disappearance of fatigue, a proper amount of extra sugar is needed. Sugar supplement: one kilogram of sugar with a weight of no more than two grams, one gram of sugar per kilogram of body weight is appropriate, and it is appropriate to use it in small amounts for many times. more