Eating earlier in the day can be beneficial for weight loss, new research suggests. According to the study by researchers from Brigham and Women's Hospital in Boston, Massachusetts, people who eat later are hungrier during the day and have lower levels of serum leptin, the hormone that helps regulate body fat. Later eaters also burned fewer calories and had a lower core body temperature. The researchers say that eating later actually changes gene expression in adipose tissue in favor of increased fat storage, which could predispose people to becoming obese. Based on the study, the researchers said that people who ate later in the day were twice as likely to feel hungry. They were also more likely to desire certain foods like starchy foods or meat. To thoroughly test, the researchers had half the study group eat earlier in the day and half eat later. Both groups then switched places and tried the alternative eating protocol. The results were mirrored on both occasions, underlining the study findings. Commenting on the study, Julie Palmer, a registered dietitian at The Ohio State University Wexner Medical Center, said that one main takeaway is that we feel hungrier when we wait to eat later in the day. “When higher-calorie foods are more available to us later in the day … we’re more likely to overeat them,” said Palmer. *Image by Steve Buissinne from Pixabay
Calorie restriction has long been known to have anti-aging benefits, but now new research suggests timing can also play a role. According to the study by researchers at the University of Texas (UT) Southwestern Medical Center in Dallas, the timing of meals contributes to the life-extending effects of calorie restriction. Studying mice, the researchers found that following a calorie-restricted diet, the rodents that only ate during the active phase of their circadian rhythm lived nearly 35% longer than control mice that were allowed to eat whenever they wanted. Both animals and humans have circadian rhythms, the purpose of which is to control daily cycles of physiology, metabolism, and behaviors like eating. In mice, which are nocturnal, the normal time to eat is at night. The study revealed how eating at other times had a significant impact on lifespan. “We have discovered a new facet to caloric restriction that dramatically extends lifespan in our lab animals,” says senior author Dr. Joseph Takahashi, Howard Hughes Medical Institute Investigator and chair of neuroscience at UT Southwestern Medical Center. “If these findings hold true in people, we might want to rethink whether we really want that midnight snack,” he adds. The study is published in the journal Science. *image by DanaTentis from Pixabay
If you’re looking to lose some weight, eating earlier in the day and intermittently fasting could help, new research suggests. According to a paper published in the journal Obesity, the timing of meals and intermittent fasting influences metabolism, which can have an impact on weight loss. Researchers discovered this following a trial involving 11 men and women, all of who were in good health, aged between 25 and 45 years and carrying some excess weight. The trial participants were split into two groups: one who ate breakfast at 08:00 and then ate their last meal of the day at 14:00, and another who ate breakfast at 08:00 and had their last meal of the day at 20:00. Both groups ate the same meals each day. At the end of the trial, participants underwent a battery of tests in a respiratory chamber to assess their metabolism. The number of calories, fat, carbohydrates and proteins burned were all measured. It was revealed that the participants who ate their last meal of the day at 14:00 and, therefore, fasted longer overnight, burned more fat than the other group. They also had lower levels of the hunger hormone ghrelin. “Eating in sync with circadian rhythms by eating early in the daytime appears to reduce body weight and improve metabolic health,” the authors of the paper wrote.
Intermittent fasting is something that’s become more popular in recent times with people looking to shed a few kilograms and now new research shows that it could actually have ‘profound health benefits’. In addition to helping people lose weight, intermittent fasting, according to the research by a team at the University Of Florida College Of Medicine, can also slow down aging and disease. The human body runs on glucose, which it gets from the food we eat. However, periods of fasting force the body to find an alternative energy source. Our bodies begin to convert body fat into fatty acids which are easily absorbed by our blood. Molecules called ketones are then produced from the fatty acids, which our bodies use as a new source of energy. Stephen Anton, a researcher from the University Of Florida College Of Medicine in Gainesville, refers to this process as "flipping the metabolic switch". He says "this switch can happen after a certain period of time fasting. It's a gradation in which your metabolism overtime shifts to use higher and higher amounts of ketones for energy”. Having reviewed numerous studies that focused on the mechanisms and benefits of intermittent fasting, Anton and his team discovered that not only did intermittent fasters experience significant weight loss, they did not lose lean tissue, such as organ tissue, muscular tissue, and bone tissue, which allow our bodies to continue functioning well and could help prolong our lifespans.