Frequently Asked Questions

When to use, how much to take & answers to the most common questions.

What is dehydration?

The signs and symptoms of mild to moderate dehydration will occur when as little as 2% of the body weight is lost through fluid. The body requires the correct balance of fluid and electrolytes (salts and minerals) to maintain everyday functions and preserve health. Internally, the body has special mechanisms which help to keep this balance in check. However, the loss of fluid and electrolytes through urine, sweat, vomit, diarrhea and other bodily fluids can upset this balance, and in some cases, a person may experience dehydration.

What are the signs and symptoms of dehydration?

Some of the signs and symptoms of dehydration include:

  • Increased thirst
  • Fatigue / Lethargy
  • Dizziness
  • Headaches
  • Dark or decreased urine output
  • Sticky or dry mouth
  • Loss of skin elasticity
  • Irritability

Try to recognize the common signs and symptoms of dehydration. If and when they occur, start using an oral rehydration solution, Hydralyte, as soon as possible.

Remember that dehydration can be of particular concern for the elderly and for young children.

What are some tips to rehydrate once you become dehydrated?

If you are experiencing dehydration, you need to act fast and drink an effective rehydration solution containing electrolytes. The best options are Hydralyte’s scientifically formulated electrolyte solutions as they contain the correct balance of sugar and salt, to ensure that you rapidly restore what the body has lost. Oral rehydration solutions are formulated based on the World Health Organization guidelines for rapid and effective rehydration. It is important to start drinking these products as soon as you notice any signs of dehydration (such as dry mouth, dizziness, fatigue), and sip small amounts at regular intervals to enhance absorption (better than drinking a large bottle all at the one time. You should also monitor yourself for the signs and symptoms of more severe dehydration (such as fainting or very low blood pressure) – if these happen you should seek medical advice as soon as possible.

How long after exercising should I rehydrate?

When you are planning to exercise, you should ensure that you start in a well hydrated state. To ensure you are well hydrated, aim to drink 8 glasses of water a day. Then, during exercise your fluid intake should match your fluid outlay. A good tip is to take 2 to 3 sips of Hydralyte’s electrolyte solution while performing sustained moderate to vigorous physical activity – this will help to prevent potential dehydration.

What is the fastest way to rehydrate?

To rapidly rehydrate the body, you need to consume a hydration beverage that contains the correct balance of glucose and electrolytes for fast and effective absorption. The World Health Organization suggests an oral rehydration solution (such as Hydralyte), which provides fast and effective restoration of both fluid and electrolytes. In situations where you are fluid and electrolyte depleted (such as in cases of stomach flu, heavy sweating or other illnesses) an oral rehydration solution may provide fast and effective rehydration.

Why does your head hurt when you're dehydrated?

One of the common symptoms of moderate dehydration is a headache. If you are experiencing a headache, consider whether dehydration could be the cause. If you are experiencing dehydration use a clinical rehydration formula (such as Hydralyte) which will restore the body’s fluid and electrolyte levels and relieve any dehydration present.

Can dehydration cause diarrhea?

This is not a very fun topic, we know, but it is incredibly important. Diarrhea is a common cause of moderate dehydration. Dehydration does not itself cause diarrhea.

If we’ve answered your question, there’s only one step left.

We've compiled answers to our most frequently asked questions. If you still have questions, send us an email!

The content of this FAQ document is not intended to replace medical advice offered by physicians and should not be construed as rendering medical advice.