how much water should you drink per day if you exercise?
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A good guideline is to drink about 50 ml (1.7 fl. oz.) per kilogram body weight throughout the day. At warm temperatures, you should drink one or two liters more as you lose more liquid through sweat.
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How much water do you need to drink? It seems like an average adult should be drinking about eight 8-ounce glasses of water each day. This means most people should drink about 2 liters or half a gallon of water each day.
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Some of the water you need is extracted from food but you should be aiming to drink 1.5-2 litres (6 large glasses) daily. Increase this amount if you're exercising to prevent dehydration.
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How much water do you need to drink every day? A common recommendation is to drink six or eight 250 mL (8 fl oz) glasses of water or other fluid every day.
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The recommended daily fluid intake for men is 2,500ml, and for women, 2,000ml* – although factors such as temperature and how active you are can influence this. Feeling thirsty is a sign you need to drink more – but ideally you should avoid getting to that stage.
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Other considerations. You may also need to drink more water if you live in a hot climate, exercise often, or have a fever, diarrhea, or vomiting. Add an additional 1.5 to 2.5 cups of water each day if you exercise. You may need to add even more if you work out for longer than an hour.
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Divide your weight by 30. The answer is the number of litres you should be drinking per day. So, if you weigh 60 kilos for example, you should drink 2 litres of water a day, whereas if you weigh 80 kilos, you should drink 2.6 litres (2 litres and 600 ml) of water per day.
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That's how many ounces of water you should drink per day. For instance, a person who is 200 pounds, should drink 100 oz. of water per day to be adequately hydrated. (That's 12.5 glasses of water!)
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Instead, think about how much you weigh and divide that number in half. That's how many ounces of water you should drink per day. For instance, a person who is 200 pounds, should drink 100 oz. of water per day to be adequately hydrated.
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How much you should actually drink is more individualized than you might think. The Institute of Medicine (IOM) recommends that men drink at least 101 ounces of water per day, which is a little under 13 cups. They say women should drink at least 74 ounces, which is a little over 9 cups.
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The National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is: About 15.5 cups (3.7 liters) of fluids for men. About 11.5 cups (2.7 liters) of fluids a day for women.
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Some people still follow the 8×8 rule, which recommends drinking eight 8-ounce glasses of water per day. However, this was not based on research. Relying on thirst may not work for everyone. Athletes, older adults, and pregnant women, for example, may need to drink more water each day.
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“Just losing 2% of your body weight in fluid can decrease performance by up to 25%.” Whether you're an elite athlete or a weekend warrior, drinking water during exercise is essential if you want to get the most out of your workout and feel good while you're doing it.
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A: This answer will vary from person to person, but as a general rule, you should get about six to eight 8-ounce glasses of fluids a day (if you're very active or live in a warm climate, you may need to up your intake a bit).
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Hydration, Energy, and Performance The usual guidelines given to instructors and coaches are that a person should drink approximately two liters of water per day. Exercise and heat increase the demand for fluids. As the body works harder, more heat is created, which needs to be lost.
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What about the advice to drink 8 glasses a day? You've probably heard the advice, "Drink eight 8-ounce glasses of water a day." That's easy to remember, and it's a reasonable goal. Most healthy people can stay hydrated by drinking water and other fluids whenever they feel thirsty.
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Add an additional 1.5 to 2.5 cups of water each day if you exercise. You may need to add even more if you work out for longer than an hour. You may need more water if you live in a hot climate. If you live at an elevation greater than 8,200 feet above sea level, you may also need to drink more.