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A Ketogenic Diet May Increase Longevity and Improve Physical Strength

A new study indicates that a ketogenic diet can have a major impact on life and health span without major weight loss or restriction of intake.

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Low Carb Diet. Pixabay
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New York, Sep 06, 2017: Consuming a ketogenic diet — which is high fat, low protein, and low carbohydrates — may not only help in weight loss, but also increase longevity and improve physical strength, says a recent study. The study, conducted on mice models, showed a 13 per cent increase in median life span for the mice on a high fat versus high carbohydrate diet.

“In humans, that would be seven to 10 years. But equally important, those mice retained quality of health in later life,” said nutritionist Jon Ramsey from the University of California – Davis. In addition, the ketogenic diet increased memory and motor function (strength and coordination), and prevented an increase in age-related markers of inflammation. It also had an impact on the incidence of tumours as well, the researchers said.

The older mice on the ketogenic diet had a better memory than the younger mice, which is really remarkable, the researchers said. According to the study, detailed in the journal Cell Metabolism, eating a ketogenic diet ramps up the production of the ketone body beta-hydroxybutyrate acid (BHB), which helps improve memory and increases lifespan.

Also Read: Should we revive ancestral dietary lifestyle for good health? 

“This study indicates that a ketogenic diet can have a major impact on life and health span without major weight loss or restriction of intake. It also opens a new avenue for possible dietary interventions that have an impact on ageing,” Ramsey said.

For the study, mice were split into three groups: a regular rodent high-carb diet, a low carb/high fat diet, and a ketogenic diet (89-90 per cent of total calorie intake). The ultimate goal is to find a way for humans to benefit from BHBs without having to go on a restrictive diet, the researchers said. (IANS)

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Diet Containing High Amount of Carbohydrates May Lead to Obesity in Some

According to lead author Bill Ballard from the University of New South Wales, the research was a rare demonstration of positive selection at work in evolution

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Obesity increases asthma risk in children: Study. Pixabay

Researchers have identified a DNA mutation common in animals that may explain why a diet high in carbohydrates induces obesity and diabetes in some but not others.

The study, published in the journal PLOS Genetics, showed a surprising difference between two sets of the fruit flies when feeding with alternate diets high in protein and high in carbohydrates.

Fruit fly larvae with a noted mitochondrial DNA (mtDNA) mutation showed a pronounced increase in development when eating high carbohydrate diet of banana, but stagnated on a high protein diet of passion fruit, Xinhua news agency quoted the study as saying.

Conversely, fruit fly larvae without that mutation thrived on the high protein diet, but dropped in frequency when put on carbohydrates, the report said.

The six-year collaborative study by Australian, American and Spanish researchers challenged the neutral theory of molecular evolution in which changes in species at the molecular level are random, not caused by natural selection and provide no benefit or disadvantage to the species.

Obesity, Pregnancy
Representational image. Pixabay

According to lead author Bill Ballard from the University of New South Wales, the research was a rare demonstration of positive selection at work in evolution.

Given that humans share 75 per cent of the same genes as fruit flies, and have the same mtDNA genes, it is likely, according to the study, that the same mutation inherited in human mtDNA may metabolise carbohydrates in a similar way.

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“But, the news is not all bad for people harbouring the mutation,” said Ballard.

“You would need to manage your carbohydrate intake when you are younger, but if you are unfortunate enough to develop Parkinson’s Disease, a high carbohydrate diet will help you maintain weight,” Ballard added. (IANS)