According to a study, eating less is not the best way to lose weight.
According to recent research that was just published in the journal Appetite, when it comes to dieting, what you eat has a greater impact on your calorie consumption than how much food you consume.
The new study, led by Faris Zuraikat, a graduate student in the Department of Nutrition at Pennsylvania State University, is the result of a year-long randomized controlled trial examining the effects of various amounts of food on weight loss.A previous study examined the so-called “portion size effect” that occurs when consumers get more than they ask for but still eat more.To this end, a previous study taught participants how to exercise more control over their portions and gave them practical portion control tools.
The purpose of this new trial study was to determine if persons who had previously received portion control training would react differently from untrained individuals to rising portion sizes.
The researchers were "particularly interested in whether those untrained people with overweight and obesity or normal weight varied in their reactions," according to the study's first author.
Calorie consumption and the impact of portion size
To find out, the researchers gathered three groups of women: 39 women with overweight and obesity who had taken part in the portion-controlling trial, 29 healthy "control" women who had a regular weight and had not taken part in the previous trial, and 34 women who were overweight but had not taken part in it.
Every woman in the research had the identical foods once every week for four weeks, but the portions got bigger in a random sequence.
Also, and maybe more importantly, there were variations in the food's caloric composition. The menu included both high-calorie dishes like garlic bread and low-calorie foods like salads.
According to the study, the ladies in all three groups ate more when given larger servings.
Yet, the group that had received portion management instruction in the earlier experiment ingested fewer calories than the untrained group.
The authors state that meals with a higher proportion of lower-energy density foods than controls were to blame for the trained participants' decreased energy consumption.
The principal researcher of the study notes that although all of the groups had identical meals, their food preferences varied. "Compared to the untrained controls, the training participants consumed more of the lower calorie-dense items and less of the more calorie-dense foods."
As a result, the calorie consumption of trained individuals was lower than that of the control groups, whose intake was unaffected by their weight status.
Why it's crucial to choose low-calorie foods
The results demonstrate that picking healthier, lower-calorie-dense foods was more successful and sustainable than just attempting to avoid sizable quantities of higher-calorie alternatives, according to the study's main researcher, who also explains the relevance of the findings.
The next thing Zuraikat says is that if you choose high-calorie items but limit how much you eat, your portions will be too small and you'll probably start to feel hungry.
Co-author of the research and Penn State professor of nutritional sciences Barbara Rolls adds her two cents.
She continues, "You're modifying the quantities of the various food categories, but you still have a full plate."
Given that people who wish to lose weight are frequently advised to eat "a bit of everything," as long as it is done in moderation, the findings are especially noteworthy.
Instead, a new study seems to indicate that choosing more nutrient-dense, calorie-reduced meals is much more crucial than attempting to eat less.