Понятие "здоровой пищи" для каждого индивидуально
19 ноября в одном из ведущих научных журналов Cell были опубликованы выводы ученых из института Вайцмана (Израиль), согласно которым одни и те же продукты усваиваются каждым организмом по-разному, что объясняет неэффективность многих диет.
Большинство рекомендаций по диетам основаны на общей оценочной системе, не учитывающей глубокие различия между людьми, так как они обнаружили, что в некоторых случаях организм двух людей может выдавать противоположную реакцию на один и тот же продукт.
newsru.co.il
Healthy' foods differ by individual
Ever wonder why that diet didn't work? An Israeli study tracking the blood sugar levels of 800 people over a week suggests that even if we all ate the same meal, how it's metabolized would differ from one person to another.
The new study, led by Eran Segal and Eran Elinav of the Weizmann Institute of Science in Israel, found that the GI of any given food is not a set value, but depends on the individual.
Different people show vastly different responses to the same food, even though their individual responses did not change from one day to another.
"There are profound differences between individuals--in some cases, individuals have opposite response to one another, and this is really a big hole in the literature," says Segal, of Weizmann's Department of Computer Science and Applied Math.
The individualized feedback yielded many surprises. In one case, a middle-aged woman with obesity and pre-diabetes, who had tried and failed to see results with a range of diets over her life, learned that her "healthy" eating habits may have actually been contributing to the problem. Her blood sugar levels spiked after eating tomatoes, which she ate multiple times over the course of the week of the study.
"For this person, an individualized tailored diet would not have included tomatoes but may have included other ingredients that many of us would not consider healthy, but are in fact healthy for her," Elinav says. "Before this study was conducted, there is no way that anyone could have provided her with such personalized recommendations, which may substantially impact the progression of her pre-diabetes."
Growing evidence suggests gut bacteria are linked to obesity, glucose intolerance, and diabetes, and the study demonstrates that specific microbes indeed correlate with how much blood sugar rises post-meal.
PUBLIC RELEASE: 19-NOV-2015
CREDIT: ZEEVI AND KOREM ET AL./CELL 2015/WEIZMANN INSTITUTE OF SCIENCE
Copyright © 2015 by the American Association for the Advancement of Science (AAAS)
http://www.eurekalert.org/pub_releases/2015-11/cp-fd111215.php
