Now pulse, pulse is not a strictly sports drink, but a vitamin drink. I remember that the pulse is sugar-free. Sugar-free drinks can't provide energy for the body, but they are more conducive to exercise than drinking pure water or tap water, so they are an awkward position. Recommended sports drinks are: Red Bull and Scream. There are many kinds mentioned in the comment area. I haven't drunk it, so I dare not jump to conclusions. The original intention of the answer is to think of "fitness" as "running". Aerobic exercise will lose a lot of body fluids and electrolytes, so low sodium salt is mentioned. When you sweat a lot, you will lose a lot of electrolytes, mainly sodium ions and potassium ions. Sodium ion maintains the voltage inside and outside the cell membrane, so it forms a protective wit of "keeping sodium and removing potassium". Some sodium ions will be reabsorbed in the kidney and potassium ions will be lost. In addition, sodium ions and potassium ions will be excreted with sweat, so if you sweat a lot, you don't need to supplement sodium. Low sodium salt is mixed with some potassium chloride and magnesium sulfate, and other components are no different from salt. Pay special attention to the fact that potassium ions cannot be supplemented too much, which is very harmful to the heart. Eating too much at a time may lead to sudden death. I remember that the recommendation of the International Health Organization is that each person should not exceed 65,438+02 grams of salt per day (the specific data can be checked), so it is quite reasonable that I only put 65,438+0 and 2 grams in running. People who cough/run and exercise like bananas. One of the reasons is that bananas are rich in potassium ions, so only sports drinks are mentioned here, and glucose is not specifically pointed out in fruits. Only the sweetness is low, and 10g of glucose and 1g of salt can't be put in the bottle of 1500ml, so it doesn't feel sweet and salty at all, just like boiled water.