Tap water can cause ageing, according to a professional who has advised Britons never to drink it.

UK tap water is full of hormones that age the body, and it is all thanks to the contraceptive pill.

Amazingly, the expert claims that the vast numbers of women being prescribed the pill is changing the levels of female hormones in the water.

Dr Marion Gluck said: “It’s one of the reasons why male fish have started to display female characteristics, why oestrogen-related cancers, such as breast cancer, uterine cancers and ovarian cancers are on the rise — water is full of oestrogen which is not removed by the usual filtration systems.”

Dr Gluck told the Mail Online that the hormonal imbalance in the water can cause ageing in the form of the “middle-aged spread.”

The feminine hormone can cause the expansion of the waist, according to the expert.

She claim Britons need to drink bottled water, from glass not plastic, or use a reverse osmosis filtration system.

These can cost in the range of £200.

It is important to drink good quality water, as drinking two litres of the drink a day is recommended by experts.

Drinking water before meals can boost weight loss, it has been claimed. 

According to scientifically-proven studies, drinking water can boost metabolism by 24 to 30 per cent over a period of 1 to 1.5 hours, helping you burn off a few more calories. 

The research is highlighted by Healthline.com on its website. 

Drinking your coffee a certain way can also help you lose weight, scientists have found.

Experts in clinical trials have found that the caffeine in black coffee specifically boots your metabolism and increases the body’s potential to burn fat.

One such study from the Department of Human Nutrition in the Netherlands stated that drinking coffee immediately boosts your metabolism, burning extra calories.

Researchers wrote: “After caffeine consumption, the metabolic rate increased immediately (…) and remained elevated for the three hours during which measurements were taken.”