Researchers in Barcelona have determined that two straightforward, familiar behaviors—eating breakfast early and maintaining a long gap between dinner and the subsequent meal—can aid in weight maintenance without requiring strict dieting. A five-year observation of seven thousand volunteers indicated that the timing of food consumption impacts body shape as much as the content of the diet does.
Spanish experts from the Barcelona Institute for Global Health (ISGlobal) have released findings that could revise conventional wisdom regarding weight loss. It turns out that preserving a slim figure doesn’t necessitate self-inflicted restrictions; adjusting one’s meal schedule is sufficient.
The study appears in the scientific journal International Journal of Behavioral Nutrition and Physical Activity.
Scientists scrutinized data from over seven thousand men and women aged between 40 and 65. Participants initially supplied details about their diet and lifestyle back in 2018, with more than three thousand undergoing follow-up evaluations five years later.
The outcome revealed a clear correlation: individuals who consume breakfast early and sustain a substantial overnight fast (by dining two to three hours before bed) generally possess a considerably lower body mass index. This effect was evident irrespective of the caloric density of their food intake.
The researchers attribute this occurrence to circadian rhythms—the body’s internal clock. Early feeding aligns better with natural biological cycles, fostering more vigorous calorie burning and effective appetite management.
However, the authors stress that the widely practiced intermittent fasting approach involving skipping breakfast does not yield comparable benefits. Men who postponed their initial meal until as late as 2:00 PM and practiced 17-hour fasts not only failed to show weight reduction but also generally exhibited less healthy lifestyles overall—this group included a higher percentage of smokers, alcohol consumers, and those engaging in less physical activity.
Nevertheless, the Spanish scientists advise against rushing into dramatic habit overhauls.
“It is still too early to draw definitive conclusions, so recommendations will need to await more robust evidence,” cautions Luciana Ponce-Muzzo, the study’s lead author.
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