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Home > Lifestyle News > Health And Fitness News > Article > Skipping breakfast may lead to weight gain says study

Skipping breakfast may lead to weight gain, says study

Updated on: 04 December,2017 12:09 PM IST  | 
IANS |

Skipping breakfast can disrupt the body's internal clock and cause weight gain, even if one does not overeat for the rest of the day, a study has found

Skipping breakfast may lead to weight gain, says study

Jerusalem: Skipping breakfast can disrupt the body's internal clock and cause weight gain, even if one does not overeat for the rest of the day, a study has found. Irregular eating habits such as skipping breakfast are often associated with obesity, type 2 diabetes, hypertension and cardiovascular disease, but the precise impact of meal times on the body's internal clock has been less clear.


Skipping breakfast may damage arteriesRepresentational picture


Researchers from Tel Aviv University (TAU) and Hebrew University in Israel found that the effect of breakfast on the expression of "clock genes" that regulate the post-meal glucose and insulin responses of both healthy individuals and diabetics. The importance of the body's internal clock and the impact of meal times on the body were the subject of this year's Nobel Prize for Medicine, awarded for the discovery of molecular mechanisms controlling our circadian rhythm.


"Our study shows that breakfast consumption triggers the proper cyclic clock gene expression leading to improved glycaemic control," said Daniela Jakubowicz of TAU. "The circadian clock gene not only regulates the circadian changes of glucose metabolism, but also regulates our body weight, blood pressure, endothelial function and atherosclerosis," said Jakubowicz.

"Proper meal timing - such as consuming breakfast before 9:30 am - could lead to an improvement of the entire metabolism of the body, facilitate weight loss, and delay complications associated with type 2 diabetes and other age- related disorders," she said.

For the study, 18 healthy volunteers and 18 obese volunteers with diabetes took part in a test day featuring breakfast and lunch, and in a test day featuring only lunch.On both days, the researchers conducted blood tests on the participants to measure their postprandial clock gene expression, plasma glucose, insulin and intact glucagon-like peptide-1 (iGLP-1) and dipeptidyl peptidase IV (DPP-IV) plasma activity.

"Our study showed that breakfast consumption triggers the proper cyclic clock gene expression leading to improved glycaemic control," said Jakubowicz. "In both healthy individuals and in diabetics, breakfast consumption acutely improved the expression of specific clock genes linked to more efficient weight loss, and was associated with improved glucose and insulin levels after lunch," she said.

In contrast, in test days featuring only lunch - when participants skipped breakfast - the clock genes related to weight loss were downregulated, leading to blood sugar spikes and poor insulin responses for the rest of the day, suggesting also that skipping breakfast leads to weight gain even without the incidence of overeating the rest of the day. "The fact that we can change the gene's expression in just four hours is very impressive," said Jakubowicz.

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