http___metro-portal.hr_dijete-bez-ugljikohidrata-nisu-najbolje-za-zdravlje_72330_1.xml
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Trying to lose weight this summer? Science has just come out with the fantastic news… That going low-carb is the BEST way to get rid of that unwanted fat. [via USAToday] The research finds that dieters who were trying to maintain their weight loss burned significantly more calories eating a low-carb diet than they did eating a low-fat diet. But some experts say these findings are very preliminary. The study, funded by the National Institutes of Health, was designed to see if changing the type of diet people consumed helped with weight maintenance because dieters often regain lost weight. So scientists had 21 obese participants, ages 18 to 40, lose 10% to 15% of their initial body weight (about 30 pounds). After their weight had stabilized, each participant followed one of three different diets for four weeks. Participants were fed food that was prepared for them by diet experts. The dieters were admitted to the hospital four times for medical and metabolic testing. The diets had the same number of calories, but the fat, protein and carbohydrate content varied. Those diets: •A low-fat diet which was about 20% of calories from fat and emphasized whole-grain products and fruits and vegetables. •A low-carb diet, similar to the Atkins diet, with only 10% of calories from carbohydrates. It emphasized fish, chicken, beef, eggs, cheese, some vegetables and fruits while eliminating foods such as breads, pasta, potatoes and starchy vegetables. •A low-glycemic index diet, similar to a Mediterranean diet, made up of vegetables, fruit, beans, healthy fats (olive oil, nuts) and mostly healthy grains (old-fashioned oats, brown rice). These foods digest more slowly, helping to keep blood sugar and hormones stable after the meal. Findings, published in this week’s Journal of the American Medical Association: Participants burned about 300 calories more a day on a low-carb diet than they did on a low-fat diet. “That’s the amount you’d burn off in an hour of moderate intensity physical activity without lifting a finger,” says senior author David Ludwig, director of the New Balance Foundation Obesity Prevention Center at Boston Children’s Hospital. [Read More] However? Just because it is the fastest way… Remember, it doesn’t mean its the HEALTHIEST way. [via io9]The research, published in the newest issue of JAMA, tracked the post weight-loss diet of a number of people with different eating regimes. One group of people were on a isocaloric low-fat diet (60% of energy from carbohydrate, 20% from fat, 20% from protein; high glycemic load). A second group ate a low–glycemic index diet (40% from carbohydrate, 40% from fat, and 20% from protein; moderate glycemic load). And a third set of people had a low-carb diet (10% from carbohydrate, 60% from fat, and 30% from protein; low glycemic load). By measuring the subjects resting energy expenditure and total energy expenditure — how many calories you burn just by existing, and in general during a normal day, respectively — they found that the diets produced very different results. What they found was that with the commonly recommended low-fat diet, you burned the least calories at rest, and the low-carbohydrates the most — a difference of around 250 calories. That’s almost the number of calories in a Snickers bar, or around an hour of moderate exercise. However, they also found that low-carb diets have the unfortunate side-effect of potentially leading to insulin resistance and cardiovascular disease. [Read More] Sometimes… Taking the slow route? Really is the best in the long run, and when it comes to your overall health… The slow route is the way you should consider given the side effects.
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Dijete bez ugljikohidrata nisu najbolje za zdravlje Proučavajući tri tipa dijeta, znanstvenici su zaključili da treba jako paziti koju biramo Ako želite izgubiti kile, u principu se morate prikloniti jednoj od dvije prevladavajuće struje. Po jednoj, sve se kalorije stvaraju jednako, pa je zapravo jedino potrebno trošiti više nego što unosite. Drugi misle da tijelo koristi kalorije različito u zavisnosti od načina njihovog nastanka, pa je prilično važno što jedete. Prema najnovijem istraživanju objavljenom u Journal of American Medical Association, od vrste hrane koju uzimate ovisi rezultat dijete i način na koji ćete nakon toga regulirati težinu. Iznenađenje u istraživanju su predočeni dokazi da dijeta s malim udjelom ugljikohidrata nije najzdravija varijanta, već upravo suprotno. Istraživanje se posvetilo proučavanju reakcija organizma na različite dijete. Jedna grupa bila je na dijeti s malo masnoća (60% ugljikohidrata, 20% masti, 20% bjelančevine). Drugi su bili na dijeti s niskim glikemijskim indeksom (40% ugljikohidrata, 40% masnoća, 20% bjelančevina), dok su treći bili na dijeti bez ugljikohidrata (10% ugljikohidrata, 60% masnoća, 30% bjelančevina). Mjereći potrošnju energije u mirovanju i ukupno u danu, pokazalo se da različite dijete daju različite rezultate. Uobičajeno preporučena dijeta bez masnoća dovodi organizam u stanje gdje se u mirovanju troši najmanje kalorija, a najviše s dijetom bez ugljikohidrata - razlika iznosi čak 250 kalorija. No, problem s dijetama bez ugljikohidrata je da potencijalno izazivaju otpornost na inzulin i kardiovaskularne bolesti.