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& ltP> Some bodybuilders and athletes think that sugar is good for improving their sports ability, so they blindly consume a lot of sugar food and food, hoping to improve their sports (sports food) ability and performance by supplementing a lot of sugar. This is useless, and it will cause side effects. & ltBR & gt First, if a large amount of sugar is ingested in a short period of time, the sugar will enter the blood, which will 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, which will affect the emptying of the stomach, and then cause discomfort such as abdominal discomfort, dizziness and nausea. & ltBR & gt Second, excessive intake of sugar increases blood viscosity and circulation, which will affect the function of the heart and make muscles stiff, which is extremely unfavorable to fitness and exercise. & ltBR & gt Third, in addition, eating too much sugar will increase triglycerides (oily food) in the blood, which will lead to cardiovascular diseases. & ltBR & gt Fourth, excessive sugar intake will affect the absorption of calcium (calcium-containing food) and relatively reduce the intake of other nutrients, resulting in malnutrition. & ltBR & gt5. Too much sugar can easily lead to obesity, because too much sugar can be converted into fat in the body. How can & ltBR & gt supplement 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. & ltBR & gt In terms of sugar supplementation, it is advisable to add a kilogram of sugar with a weight of no more than two grams, and a small amount of sugar for multiple times.