More calories by heating? Be careful – Trivia – Articles |

According to research published in the American Journal of Physical Anthropology more calories by consuming a high-fat product subjected to high temperatures. Or at least that’s what scientists at Harvard University say. They did a simple study. They gave one group of mice raw peanuts and the other group of roasted peanuts. The rodents ate exactly the same amount, yet the roasted peanuts caused more weight gain.

The Health Study Nurses published research results that confirm that consumption of at least five servings (1 serving is 28 g) of nuts per week or peanut butter (1 serving is 16 g) is significantly related with a lower risk of cardiovascular disease.

You can clearly see that the fat after the heat treatment was easier assimilated, which led to an increase in body weight. Authors The presented research emphasizes that there is fat in raw peanuts indeed it was in the same amount as in the roasted meat, but it was protected solid cell walls. And that’s not all. On the surface of peanuts there are special proteins: oleosins, which ‘protect’ the fat contained in oleosomes. During heating, the amount of these proteins decreases, which further improves the availability of fat.

Nutritional values ​​of peanuts (per 100 g):

As long as we are aware that thermal treatment increases availability calories from protein and starch, fat was a mystery. Not so long ago, in 2011, a study was published in Nutrición Hospitalaria confirming the hypothesis that Roasted peanuts lead to lower postprandial glucose levels than raw peanuts. The authors of the study then concluded that roasted peanuts may help to control blood sugar levels and prevent diabetes.

Now we know that additional tests are necessary also for the availability of fat after roasting.

The photo comes from: James Blunt Photography / Foter / CC BY-ND