Life Science and Medical News from Around the Globe
Extract of Irish Potatoes Reduces Weight Gain to Surprising Extent
Take a look in your pantry: the miracle ingredient for fighting obesity may already be there. A simple potato extract may limit weight gain from a diet that is high in fat and refined carbohydrates, according to scientists at McGill University. The results of their recent study were so surprising that the investigators repeated the experiment just to be sure. Investigators fed mice an obesity-inducing diet for 10 weeks. The results soon appeared on the scale: mice that started out weighing on average 25 grams put on about 16 grams. But mice that consumed the same diet but with a potato extract gained much less weight: only 7 more grams. The benefits of the extract are due to its high concentration of polyphenols, a beneficial chemical component from the fruits and vegetables we eat. “We were astonished by the results,” said Professor Luis Agellon, one of the study’s authors. “We thought this can’t be right – in fact, we ran the experiment again using a different batch of extract prepared from potatoes grown in another season, just to be certain.” The rate of obesity due to over-eating continues to rise in Canada, affecting 1 in every 4 adults. Obesity increases the risk of cardiovascular disease and cancer. According to this study, potato extracts could be a solution for preventing both obesity and type 2 diabetes. The study was published in the November 2014 issue of Molecular Nutrition & Food Research. “The daily dose of extract comes from 30 potatoes, but of course we don’t advise anyone to eat 30 potatoes a day,” says Dr. Stan Kubow, principal author of the study, “as that would be an enormous number of calories.” What the investigators envisage instead is making the extract available as a dietary supplement or simply as a cooking ingredient to be added in the kitchen.