Berries

Eating lingonberries could help prevent weight gain

Eating lingonberries could prevent weight gain more effectively than so-called “superberries”, research suggests.

Scientists tested a variety of berries from raspberries to blackcurrants for the effects they have on mice and found the Scandinavian berry almost completely prevented an increase in weight.

The lingonberries also produced lower blood sugar levels and cholesterol, the researchers from Lund University in Sweden found.

However, the açai berry from Central and South America, which is hailed as a “superberry”, came last in the study.
The team of scientists used a type of mouse regarded as a model for overweight humans at risk of diabetes because it easily stores fat. Some of the mice were fed a low-fat diet, while the majority of the animals were fed a diet high in fat.

They were then divided into groups, where all except a control group were fed a type of berry – lingonberry, bilberry, raspberry, crowberry, blackberry, prune, blackcurrant or açai berry.

When the mice were compared after three months, the lingonberry group had “by far the best results”, the researchers said.

The mice that had eaten lingonberries had not put on more weight than the mice that had eaten a low-fat diet – and their blood sugar and insulin readings were similar to those of the ‘low-fat’ mice. Their cholesterol levels and levels of fat in the liver were also lower than those of the animals who received a high-fat diet without any berries.
Blackcurrants and bilberries also produced good effects, although not as pronounced as the lingonberries.

The good results from lingonberries may be due to their polyphenol content, according to the researchers, who are continuing work to understand the molecular mechanisms involved in their effect, while studying whether the effect can be observed in humans.
Karin Berger, a diabetes researcher at Lund University, said: “Up to 20 per cent of our mice’s diet was lingonberries. It isn’t realistic for humans to eat such a high proportion.

“However, the goal is not to produce such dramatic effects as in the ‘high-fat’ mice, but rather to prevent obesity and diabetes by supplementing a more normal diet with berries.”
She added: “In our study, the açai berries led to weight gain and higher levels of fat in the liver.”

The researchers warned against eating large quantities of lingonberry jam, because boiling the berries can affect their nutrient content and jam contains a lot of sugar. They recommended eating frozen lingonberries on cereal or in a smoothie.

Source: telegraph

Chocolate, Tea, Berries May Cut Diabetes Risk

A diet that includes substances found in chocolate, tea and berries could help protect people against diabetes and other diseases, new research shows.

The study included nearly 2,000 healthy women in the United Kingdom who completed a food questionnaire and were tested for blood sugar (glucose) regulation, inflammation and insulin resistance.

“Our research looked at the benefits of eating certain sub-groups of flavanoids. We focused on flavones, which are found in herbs and vegetables such as parsley, thyme and celery, and anthocyanins, found in berries, red grapes, wine and other red or blue-colored fruits and vegetables,” study leader Aedin Cassidy, of the University of East Anglia in England, said in a university news release.

The investigators found that consuming high levels of flavones and anthocyanins was associated with lower insulin resistance, better blood sugar regulation and lower levels of inflammation. Chronic inflammation is associated with diabetes, obesity, cardiovascular disease and cancer.

The study was published in the Journal of Nutrition.

“This is one of the first large-scale human studies to look at how these powerful bioactive compounds might reduce the risk of diabetes,” Cassidy said.

Earlier research that took place in laboratories suggested that these types of foods might affect blood sugar, which plays a role in type 2 diabetes risk, she noted. However, it was unknown how regular consumption of these ingredients might affect a person’s blood glucose and inflammation levels and insulin resistance, Cassidy said in the news release.

What remains unclear is exactly what amounts of these compounds are needed to reduce the risk of diabetes, the study authors added. Also unclear is how much of a health benefit the compounds really carry — the study found an association between consumption and seemingly better health but not cause-and-effect.

According to study co-author Tim Spector, of King’s College London, “This is an exciting finding that shows that some components of foods that we consider unhealthy like chocolate or wine may contain some beneficial substances. If we can start to identify and separate these substances we can potentially improve healthy eating,” he said in the news release.

Source: webmd