Olympic swimmers most probably need more than 2'000 Calories (I assume you refer to kilo calories and not calories) per day.2'000 Calories is about the amount that somewhat active women need per day to stay in energy balance.
The Olympic swimmer Michael Phelps consumed 12'000 Calories per day during the Olympic games. This is due to their activity level. Michael for example spend 6 hours 6 days per week swimming. This forces the body to use a lot of energy which in turn forces the person to consume large amounts of energy in order to not lose weight.
2000 to 2500 calories! they need to grow at these age! :]
On average, 2000 calories per day.
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Children need 2000 to 3000 calories a day because children are still growing. An average adult needs 2000 to 2400 calories a day.
Adult males need to consume around 2500.Adult females around 2000.However, an olympic athelete needs to consume around 4000.An average healthy human eat 2000 - 2500 calories per day eating less than 1500 or more than 2650 can be dangerous.
They needed 4000 calories a day. We homo sapiens need 2000. Therefore we are much more efficient.
I wouldnt necessarily call it "Fatty" Food that swimmers need. Swimming is a sport that requires many muscles and parts of your body to work in a near-perfect harmony so that you can swim faster. This burns many many many calories per day depending on how much you swim. To keep a swimmers daily calorie intake normal and balanced after burning 1100+ calories a day; that swimmer must eat how ever more calories it has burned then usually so that each day they intake around 2000 calories. A swimmer who has to eat extra calories a day ( like me ;] ) can eat whatever to keep its daily intake back on track. This could be done by eating Cupcakes and burgers all day or eating things like pasta, or other Regular food. Usually it will be found that swimmers don't eat fatty foods to re-gain calories because if your competitively swimming later that day - it doesn't feel that good. The best thing for a swimmer to eat is Pasta before they swim. Hope that helped!
The recommended number of calories is 2000 a day, even if you want abs to show.