Planning to lose weight ? Eating breakfast may not help

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The most important meal of the day, may not be helping people control their weight. There is no good evidence to support the idea that eating breakfast promotes weight loss or that skipping breakfast leads to weight gain, finds a review. The findings show that daily calorie intake was higher in people eating breakfast and that skipping breakfast does not cause greater appetite later in the day. The researchers stress that the quality of studies was low, so the findings should be interpreted with caution, but say that their review questions the popular recommendation that eating breakfast can help with weight control. Previous studies have suggested that eating breakfast is linked with maintaining a healthy weight, but these findings have been observational and possibly reflect an individual’s wider healthy lifestyle and food choices.

A team from Monash University in Australia analysed the effect of regularly eating breakfast on weight change and daily energy intake, based on evidence from 13 randomised controlled trials, mainly in the United States and the United Kingdom, from the last 28 years. Several trials focused on the relationship between eating or skipping breakfast and changes in body weight, while others looked at the effect of breakfast on daily energy intake. Participants included habitual/non-habitual breakfast eaters, or both, at a range of body weights, who were monitored between 24 hours and 16 weeks. The researchers found that total daily energy intake was higher in groups who ate breakfast compared with those who skipped it, regardless of their usual breakfast habits. And the results showed that those who skipped breakfast were, on average, 0.44 kg lighter.

The effect of breakfast on weight did not differ between people with a normal weight and those who were overweight. It has previously been suggested that eating breakfast may help with weight loss because of the efficient burning of calories early in the day, preventing overeating later on. But the reviewers found no significant difference in metabolic rates between breakfast eaters and skippers. And despite common belief, skipping breakfast was not linked to people feeling hungrier in the afternoon – or to differences in energy expenditure. The authors highlight that because of the varying quality of the studies included, the findings should be interpreted with caution. However, they argue that “currently, the available evidence does not support modifying diets in adults to include the consumption of breakfast as a good strategy to lose weight”.

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