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How long does it take to rehydrate your body?

When you drink a glass of water, it takes approximately 15 minutes for your body to absorb the fluid.

However, when you're dehydrated, it can take about three times as long (45 minutes) for fluids to make their way from the stomach into the bloodstream and to the rest of the body.

That's because dehydration causes the stomach to produce more acid, which slows down digestion. 

Plus, less blood is flowing overall when you're dehydrated. It takes longer for fluids to reach all the parts of your body that need them.

Learn more about dehydration and how long it might take to rehydrate your body. 

What is dehydration?

Dehydration is a condition that occurs when the body doesn't have enough water to function properly. It can be caused by excessive sweating, vomiting, or diarrhea. It can also occur when you don't drink enough fluids, especially water.

Dehydration can cause many negative health effects, including fatigue, headache, and dizziness. But the most serious danger of dehydration is that it can lead to heatstroke.

That is why it's so important to stay hydrated on hot days, after you work out, and when you're ill. Drink plenty of fluids, especially water, and you'll rehydrate your body in no time.

How long does it take to rehydrate your body?

It depends on a variety of factors such as how dehydrated you are and how much water you drink at once. In general, however, it usually takes about two hours for your body to rehydrate fully after drinking a significant amount of water.

As for how you should rehydrate, water is the best choice. Sports drinks, such as Gatorade, can be helpful for athletes who need to replenish electrolytes.

Symptoms of Dehydration

Symptoms of dehydration can include:

  • Thirst
  • Fatigue
  • Headache
  • Dizziness
  • Nausea
  • Vomiting
  • Diarrhea
  • Loss of appetite
  • Dry mouth
  • Coughing
  • Rapid heart rate
  • Shriveled skin
  • Unconsciousness/fainting
  • Dark urine
  • Lack of sweat production
  • Low blood pressure
  • Heatstroke

If you are seriously dehydrated due to extreme temperatures or illness, see a doctor right away. IV fluids can be administered to safely, quickly rehydrate your body.

Causes of Dehydration

There are many causes of dehydration, including:

  • Excessive sweating
  • Vomiting
  • Diarrhea
  • Not drinking enough fluids
  • Heat exposure
  • Drugs such as diuretics and anticholinergics

How to Prevent Dehydration

Dehydration is a common problem that can occur during any season, but it is especially prevalent in the summertime. 

One of the best ways to prevent dehydration is to drink plenty of fluids, especially water. You should also avoid drinking too much alcohol or caffeine, which can dehydrate you.

When it’s exceptionally hot outside, bring a reusable water bottle with you and avoid strenuous activity. You should also wear light clothing, which doesn’t absorb as much heat as heavy, dark-colored clothing.

Eating hydrating foods can also help prevent dehydration. Fruits and vegetables are a good source of water, and they also provide other essential nutrients your body needs. 

Dehydration can be a serious problem, but it can be prevented by drinking plenty of fluids, staying cool, and eating water-rich whole plant foods. 

What to Do if You Are Dehydrated

First, assess how dehydrated you are.

If you are dizzy, tired, confused, or can’t keep fluids down, see a doctor right away. IV fluids are a safer way to stabilize you once dehydration becomes dangerous to your health. 

If you have mild dehydration, just drink water. The general recommendation is between two and three liters daily. If you’re in hot temperatures or are breaking a sweat, increase this amount accordingly. 

A Reduce Water Bottle Can Help!

Looking to increase your hydration? Get a reusable water bottle from Reduce Everyday.

Our sleek and stylish bottles will help you remember to drink your eight glasses a day. They’re easy to carry, fill, and clean, so no matter where you are, you’re preventing dehydration.

Also check out our cold chiller mugs to keep your water, teas, and juices cold for hours. 

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