​​​ ​​ The importance of water at different times of life - BWT Best Water Technology 

How much water do you really need?

The importance of water at different times of life

15.12.2017 9:00   Different people may need different amounts of water
the importance of water at different times of life

Water is an essential element in life, and drinking enough clean and healthy water every day should be a priority.

Whilst the water delivered to our homes and places of work is tightly regulated there is no such guarantee that the water from our taps once it has travelled around our homes and offices is going to be that great. Old pipes often of an unknown composition and modifications to existing plumbing systems can both contribute to a level of uncertainty when it comes to the quality of drinking water especially away from the comfort of our own homes. As water technology specialists for more than 25 years BWT, are in a great place to recommend and supply a wide variety of safe, refreshing and hygienic drinking water solutions suitable for the home, office, school, college and almost any other place of work.

Water is an element of fundamental importance for humans but different people may need different amounts of water. The NHS recommendation of 6 to 8 glasses of water a day is a good general guide rule but the actual amount we need to drink as individuals depends on many things, the outdoor temperature, our body temperature, lifestyle, physical exercise, and our individual body weight and age.

How much water do you really need?

Water in childhood and adolescence.

Water is one of the most important nutrients for children but the amount they drink varies considerably based on their environment, lifestyle and their early interaction with parents and their peers. At school, children are quick to follow behavioural models, especially between 3 and 12 years old, behaviour which can influence their lifestyles choices for the future, including influencing their choice of diet and hydration regime

During childhood the metabolic processes requires a certain amount of water to be effective. In general, 1ml of water per 1Kcal is required. For example a child consuming 1500Kcal per day would require, 1500ml of water or 1.5 litres to balance the metabolic process.

During adolescence the physical changes in the body are remarkable. On average, a diet intake of between 2,300 and 2,500 Kcal a day is recommended. Suggesting the typical adolescent should drink about 2.5 litres of water per day but if the adolescent is really active e.g. plays a lot of sport, their water requirement will be higher, typically around 2.8 and 3 litres.

One simple, practical recommendation for children and teenagers is to drink at regular intervals without waiting until they feel thirsty.

Water in the Third Age.

With age the thirst stimulus is gradually reduced, and so it is easy for the body to dehydrate with consequences, which may be dangerous for the elderly person. It is important that older people drink a little and often totalling on average between 1.5 and 2 litres of water a day. Committing to a daily eating plan is one practical way of ensuring older people don’t simply forget to drink.

Good hydration is important in older people, because their health can be affected. Dry skin, sunken eyes, sticking mouth, or lack of saliva, as well as scarce urine, can be indicators of dehydration in an elderly person.
In addition to the correct intake of water, it is recommended that older people avoid the midday sun, and have a diet rich in fruit and vegetables.

Consequences of a correct hydration in the elderly:
• Improves the condition of the cardiovascular-circulatory system
• Helps to prevent kidney stones
• Improves nourishment of the skin
• Helps digestion and – prevents constipation
• Improves mental alertness
• Reduces the sensation of fatigue and weakness and improves muscle tone.

It should be remembered that any hydration plan should take into account a person’s state of health, weight, the outdoor temperature and degree of exercise taken.

Women during pregnancy and lactation.

During pregnancy a person’s water intake need not alter and should be appropriate to their diet. Correct hydration is essential for good milk production and for constant replacement of leaks of amniotic fluid. During lactation however it is commonly suggested that a person’s daily water intake should be increased to around 3 litres per day .In extreme circumstances dehydration may also contributory factor in inducing contractions and premature birth.

Water for athletes

It’s important to keep your fluids and minerals topped up while you’re exercising so as not to risk dehydration which can affect not only your concentration but can also lead to muscle cramping.

Proper hydration is essential in sports, in order to promote the participants’ safety, wellbeing and performance. The loss of water in athletes through sweating is very high.

‘Did you know that you can lose up to two litres of water per hour just through sweating and breathing?’

Sweating is the body’s natural cooling system that not only makes a person lose water but also electrolytes as well. Replacing water and electrolytes properly is very important factor in maintaining an athlete’s wellbeing. It’s also important to make sure you’re fully hydrated before you begin exercising so you can get the most out of your session and also so there is less strain on your heart. For optimum hydration you should aim to drink around 500ml four hours or more before exercising and then 250ml 15 minutes before you begin.

It's a good idea to talk with your doctor if you're unsure about how much fluid you should drink each day.


The Magnesium Mineralized difference

Not all water is the same some have more minerals than others

Water is more than just a refreshing drink and provides a vital source of minerals such as calcium and magnesium and so is important to our health. BWT Magnesium Mineralized Water is ideal for topping up on some of those vital ingredients such as Magnesium.

A well-balanced diet can help you get the calories and nutrients you need to fuel your daily activities, including regular exercise. By adding magnesium into this diet, you can help* your body because Magnesium contributes to:


  • normal energy-yielding metabolism and a reduction of tiredness and fatigue
  • electrolyte balance and normal muscle function
  • normal psychological function and functioning of the nervous system
  • normal protein synthesis and has a role in the process of cell division
  • the maintenance of normal bones and teeth

*List of permitted health claims established in the Official Journal of the European Union. COMMISSION REGULATION (EU) No 432/2012 of 16 May 2012

health claims magnesium

Recommended daily intakes of this element have been set at national and international levels. The Magnesium in BWT’s Mineralised water helps give the water a better taste and also contributes positively towards a person’s RDA of this vital and beneficial mineral. Individual requirements may vary and if you are concerned you should speak to your doctor or nurse.

     Recommended dietary allowances for Magnesium      

Age Male Female 

 Birth to 6 months 30 mg* 30 mg*
 7–12 months  75 mg*  75 mg*    
 1–3 years  80 mg   80 mg     
 4–8 years  130 mg     130 mg       
 9–13 years    240 mg    240 mg    
 14–18 years    410 mg    360 mg  400 mg  360 mg
 19–30 years    400 mg    310 mg  350 mg  310 mg
 31–50 years    420 mg    320 mg  360 mg  320 mg
 51+ years    420 mg    320 mg    

*Adequate Intake

Although magnesium is available in supplements, most people should be able to get all the magnesium they need from a healthy balanced diet and Magnesium Mineralized Water. Magnesium Mineralized Water aides the metabolism and is a good flavour carrier and makes great hot and cold drinks














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