If you enjoy and benefit from our website and products, tell your friends. It shows that high-fat feeding even over short periods of time can markedly affect Mental Abilities Also Affected. Fat is a less efficient fuel then glucose sugar. Runners use up the sugar stored in their body, and are forced to rely mainly on fat stores for the last 6 miles. Fat is a more concentrated form of energy, but sugar is faster burning. A study at Oxford University in England, published online August 10, , in the FASEB Journal, sought to determine whether a high-fat diet would be good or bad for endurance capacity. In particular, using fat as a fuel is less efficient than using glucose from carbohydrate, but the metabolic changes induced by different diets are complex and it has been controversial whether high-fat feeding for a short time would increase or decrease physical performance. Some have argued that a high fat diet improves fat burn during exercise, which would spare sugar stored in the muscles glycogen.
Surprisingly, it may not be necessary to avoid all higher fat foods or lose a great amount of weight to achieve these health benefits. In a paper published in in the journal Metabolism, Heidi Silver, Ph. The women ate a diet consisting of one-third saturated fats found in foods like cheese, margarine and meats, one-third monounsaturated fats found in olive oil and nuts, and one-third polyunsaturated fats found in fatty fish, safflower and corn oils, as well as nut butters. After 16 weeks, fat mass decreased, lean mass muscle increased, and blood levels of inflammatory cytokines fell substantially. Blood pressure also lowered significantly. Gilbert, systems support coordinator at the Vanderbilt Clinical Staffing Resource Center, said she lost weight and her cholesterol dropped while on the study. But the biggest change was her approach to food. There was another surprise. Before she started the study, Hedley-Williams thought she was pretty healthy.
Diet reduces balanced high fat
The Mediterranean diet, which is a balanced diet with lots of fiber from plants, olive oil, and moderate meat and fish intake, is associated with greater heart health, healthy body weight, and obesity prevention. The study protocol was approved by the local Institutional Review Board. This suggests that these women had a low capacity to oxidize fat. Energy density of foods affects energy intake in normal-weight women. Equally, choosing the wrong fats in the pursuit of a high-fat diet could have less attractive results. This, of course, allowed the researchers to compare performance on the low- and high-fat diets. These studies suggest that interindividual variability in the ability to oxidize fat, under isoenergetic conditions, may be an important mechanism by which individuals differ in their propensity to gain weight over time. Carbohydrate balance was again achieved by day 4. Mice fed a standard high-fat diet became obese and had a percent increase in the number of fluorescently-labeled immune cells in the central nervous system compared to mice fed a standard control diet. These interindividual differences may translate into differences in weight gain over time when individuals are exposed to a high-fat diet.
A high-fat diet is essentially the opposite to low-fat. J Clin Invest ; 96 : — Guide 28 articles.