Adults need to drink six to eight glasses of fluid a day. But what exactly counts as a glass of fluid? And are there certain drinks that I should avoid drinking? Here we explain what the exact nutritional recommendations for fluids are and which ones will help you stay healthy!
Health professionals recommend adults drink six to eight glasses of fluid a day.
- How much fluid you need depends on your age, weight, and activity level. The Institute of Medicine recommends that healthy adults should drink about 12 cups (3 liters) of total beverages a day. If you’re over 65 or under 13 years old, increase that number to 13 cups (3.2 liters).
- Drink enough fluid so as not to become dehydrated. Dehydration occurs when the body doesn’t have enough water or other fluids to carry out its normal functions, such as regulating temperature and controlling blood pressure. Symptoms include fatigue, thirst, and dry mouth — but they can also be difficult to recognize because they are similar to those associated with other illnesses like the flu or a cold
Caffeine does not count towards the daily fluid total.
When you think about drinking fluids, caffeine probably doesn’t come to mind. But did you know that caffeine is not a nutrient and does not count towards the daily fluid total?
Caffeine is a stimulant found in coffee, tea, cola, and energy drinks. It can cause dehydration because it attracts water to be excreted out through urine.
Water, milk, fruit juices, and smoothies can count towards the daily fluid total.
Water, milk, and fruit juices can count towards the daily fluid total. If you want to drink something other than plain water, try a healthy alternative such as fresh fruit juice or smoothies. Fruit juices are a great way to get your five a day and they come in many different flavors. Smoothies are also quick and easy to make at home using your blender and fresh ingredients from the supermarket – just add ice cubes for an extra refreshing treat!
Regular tea, coffee, and fizzy drinks in small amounts do not cause health problems if they are drunk in addition to water and other fluids.
It is important to drink water or other fluids regularly, over and above eight glasses a day. Because caffeine is a diuretic, it causes dehydration. Therefore you should limit your intake of caffeinated drinks such as tea and coffee to three cups per day. Fizzy drinks are also best limited to one or two per day because they contain sugar which adds calories without adding nutritional value.
Other drinks can be used as well—for example, barley water and fruit juices are good sources of vitamin C (which helps keep your immune system strong). However, it’s best not to add these types of beverages to your daily fluid count because they do not contribute to rehydration after exercise (i.e., they don’t count towards the recommended 1 liter in total).
Unsweetened milkshakes made with milk can contribute to the daily fluid total.
Milkshakes made with milk can contribute to the daily fluid total. The nutritional content of a milkshake depends on what ingredients are used, but they’re generally a good source of protein, calcium, and vitamins.
You can make your own from scratch by blending milk (or soy or almond), fruit, and water. Or you can buy ready-made ones that don’t contain any added sugar – most supermarkets have their brand available for around £1.
Adults are recommended to drink six to eight glasses of fluid a day.
For adults, the recommended daily fluid intake is six to eight glasses. This amounts to anywhere between 2.2 and 3 liters of fluids per day; that’s more than a gallon (3.8 liters) for most people!
As with everything else in life, it’s important not to overdo it when it comes to drinking water. Drinking too much water can cause health problems like hyponatremia (low sodium levels in the blood). People who drink a lot of fluids may need to pee frequently or feel thirsty all the time. While these things are normal for people on high-fluid diets, they should still be monitored by a doctor if they persist beyond a few days or become severe enough that they interfere with daily life and work activities.
We hope this article has given you a better idea of what the exact fluid recommendations are for adults. If you have any questions or concerns, please ask your doctor or health professional.