You may have heard different recommendations for daily water intake. Most people have been told they should drink 6 to 8 8-ounce glasses of water each day, which is a reasonable goal. However, different people need different amounts of water to stay hydrated. Most healthy people can stay well hydrated by drinking water and other fluids whenever they feel thirsty. For some people, fewer than 8 glasses may be enough. Other people may need more than 8 glasses each day.
If you are concerned that you are not drinking enough water, check your urine. If your urine is consistently colorless or light yellow, you are most likely staying well hydrated. Dark yellow or amber-colored urine is a sign of dehydration.
Water is the best option for staying hydrated. Other drinks and foods can help you stay hydrated, but some may add extra calories from sugar to your diet.
Drinks like fruit and vegetable juices, milk, and herbal teas can contribute to the amount of water you get each day. Water can also be found in fruits and vegetables (for example, watermelon, tomatoes, and lettuce) and in soup broths.