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Sipping acidic fruit teas can wear away teeth

Sipping acidic drinks such as fruit teas and flavoured water can wear away teeth and damage the enamel, an investigation by scientists has shown.

The King's College London team found that drinking them between meals and savouring them for too long increased the risk of tooth erosion from acid, according to BBC.

The research, in the British Dental Journal, looked at the diets of 300 people with severe erosive tooth wear.

It said the problem was increasing as people snacked more.

Low magnesium levels make vitamin D ineffective

There is a caveat to the push for increased Vitamin D: Don't forget magnesium.

A review found Vitamin D can't be metabolized without sufficient magnesium levels, meaning Vitamin D remains stored and inactive for as many as 50 percent of people, according to Science Daily.

"People are taking Vitamin D supplements but don't realize how it gets metabolized. Without magnesium, Vitamin D is not really useful or safe," says study co-author Mohammed S. Razzaque, MBBS, PhD, a professor of pathology.

Sea swimming 'increases illness risk'

Swimming in the sea substantially increases the chance of developing stomach bugs, ear aches and other illnesses, researchers have found.

The University of Exeter Medical School and Centre for Ecology and Hydrology carried out the study, according to BBC.

It concluded, compared to non-sea swimmers, the likelihood of developing an earache increases by 77% and for a gastrointestinal illness rises by 29%.

As well as swimming, the risks also apply to water sports, such as surfing.

Red wine compound 'could help tooth decay and gum disease fight'

Red wine has previously been linked to a range of supposed health benefits, from helping the heart to lowering the risk of diabetes.

Now a new study suggests it contains chemicals that can help in the fight against tooth decay and gum disease, according to BBC.

Researchers found compounds from the drink, known as polyphenols, helped fend off harmful bacteria in the mouth.

Eating fruits, vegetables and whole grains slashes depression risk by more than 10%

Eating fruits, vegetables and whole grains slashes people's risk of depression by more than 10 percent, new research suggests.

Following the so-called 'DASH diet' reduces people's likelihood of developing the mental-health disorder by up to 11 percent, according to Daily Mail.

Those who eat a typical Western diet, which is rich in processed foods and sugar, are more at risk of suffering depression, the research adds.