Benefits of drinking water

Water is a colourless liquid composed of hydrogen and oxygen (H20). It is vital for life, although it supplies no calories.  Drinking adequate amounts of water, or staying hydrated, is the first rule of health and nutrition. Our bodies can supposedly last weeks without food, yet just a few days without water. This makes sense when you realise our bodies are made up of about 60% water and that being dehydrated can affect us both physically and mentally.

Research has shown that even mild dehydration may impair memory and mood in everyone from children to the elderly. Hydration impacts the brain, as well as the body, and research has shown that even mild dehydration may have a negative impact on moods and may heighten anxiety.

A lack of water may also increase the risk of a headache or migraines in some individuals.

The brain can’t actually tell the difference between hunger and thirst, so often we mistake thirst as a ‘sugar craving’. The next time you feel the need for something sweet, try a glass of water first.

Staying hydrated may also help with weight maintenance. Research has shown that having water before a meal may fill you up more and therefore promote weight loss through suppressing your appetite. This was also noted in a 2015 study in which diet drinks were swapped for water. The results showed this may lead to greater reduction in weight and improved insulin resistance.

There has been a lot of research into the effects of hydration or dehydration in athletes, and the results all pretty much conclude that dehydration not only affects sports performance but also physiological function too.

Water helps to ‘keep things moving’ in the digestive system, so staying hydrated may help prevent constipation in children, adults and the elderly. There is some evidence that fizzy water may be of particular benefit too.

Poor hydration may increase the risk of developing, or the recurrence of kidney stones, in some individuals. Studies have also shown that drinking adequate amounts of water may reduce the risk of bladder infections and urinary tract infections, including cystitis, in women.

Is tap water safe for everyone to drink?

Tap water in the UK which complies with legal quality standards is safe for everyone to drink. However, if you are preparing a feed for a baby you should be sure to use unsoftened mains water.

The NHS recommends that the average adult consume 6-8 glasses or cups of hydrating fluid each day. This includes lower fat milks, and low sugar or sugar-free drinks, tea and coffee. However, this may vary dependent on your age, gender and activity levels. For example, you may need more water if you are exercising or when the weather is hot.

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