The theory that breakfast is the most important meal of the day - including for dieters - may not be true, research suggests.
Carried out by researchers at Monash University, the new study looked at 13 randomised controlled trials from the last 28 years to investigate whether regularly eating breakfast could have a positive effect on weight change and daily energy (calorie) intake.
If you're trying to lose weight you've probably been told not to skip breakfast, as it could make you hungrier later in the day.
Here is what they found: Those who ate breakfast tended to consume 260 extra calories per day compared to those who skipped it. The ones who skipped breakfast were found to be 0.44 kg lighter on an average.
Dr Frankie Phillips, registered dietitian for the British Dietetic Association, said: "Whilst some studies do show that people who eat breakfast tend to be a healthier weight, there is no clear benefit of starting to eat breakfast just as a tool to lose weight".
Kevin Murphy, professor of endocrinology and metabolism at Imperial College London, said in an email to CNN that the study's "analysis suggests that eating breakfast is, on average, likely to make it more hard to lose weight, as you eat more calories during the day".
The authors warned that because of the varying quality of the studies included, the findings should be interpreted with caution.
It found that for people who already don't eat breakfast, and want to lose weight, adding breakfast isn't a good idea.
The summary of the Australian Dietary Guidelines also suggests eating a healthy breakfast under its tips to maintain a healthy weight, in line with other public health guidance around the world.
While several studies have linked lower body weight to frequent breakfast consumption, King's College London professor Tim Spector noted such research is "flawed by bias". Another question relates to whether breakfast is a necessary component in weight loss strategies.
A new study has appeared to shed doubt on the importance of eating breakfast. There was also no evidence that they were less likely to overeat later in the day.
"If you do enjoy breakfast, don't stop, but take a look at what you are having".
It's always important to discuss diet plans or changes with a GP or health professional.
The findings fly in the face of the common consensus that skipping breakfast only leads to snacking on calorie-dense, less sustaining snacks later in the day.
For example, patients diagnosed with diabetes may have to stick to a certain eating schedule to prevent spikes in blood sugar. It is a good opportunity to get "important nutrients into the diet", such as fiber from whole grain breakfast cereals and calcium from dairy foods.