Skip to content
Should You Eat Breakfast?

Should You Eat Breakfast?

For decades, breakfast has been labeled the “most important meal of the day,” but is it truly essential for health and weight management? Let’s explore what the research says.

What Defines Breakfast?

Breakfast is simply the first meal consumed after an overnight fasting. However, the definition varies across studies. According to Baltar et al. (2018), breakfast is not just about the time of consumption but also the caloric intake, with a minimum of 50 kcal required to be considered breakfast.

Nutritional Quality of Breakfast

An ideal breakfast should:

  • Deliver adequate protein, fiber, vitamins, and minerals
  • Limit added sugar and unhealthy fats, especially from processed foods
  • Include whole grains or fortified cereals to enhance nutritional value

A healthy Lebanese breakfast combines protein, fiber, and healthy fats while embracing traditional flavors. Foul medames and balila offer plant-based protein and fiber, while labneh with olive oil provides protein and healthy fats. Prioritizing whole grains, legumes, dairy, and fresh vegetables while minimizing added sugar makes for a nutritious and satisfying breakfast.

Does Breakfast Improve Health?

Cardiometabolic Health

Breakfast consumption has been associated with improved cardiometabolic markers (Santos and Tinsley, 2023; Lukomskyj, 2021), but what does that mean? Cardiometabolic health combines heart and metabolic functions, including blood sugar control, blood pressure, cholesterol levels, and weight management.

A meta-analysis of 7 cohort studies involving 221,732 participants has shown that skipping breakfast was associated with elevated risk of cardiovascular disease (relative risk 1.22 95% confidence interval 1.10–1.35) and all-cause mortality (relative risk 1.25 95% confidence interval 1.11–1.40) compared with eating breakfast regularly (Chen et al., 2020). Another review of 18 studies involving 242,095 participants found that skipping breakfast was linked to a 27% higher risk of all-cause mortality (HR: 1.27, 95% CI: 1.07–1.51) and a 28% increased risk of cardiovascular disease (CVD) mortality (HR: 1.28, 95% CI: 1.10–1.50). Additionally, skipping breakfast was associated with a 34% higher risk of cancer mortality (HR: 1.34, 95% CI: 1.11–1.61) (Wang et al.2020).

Obesity

A systematic review of 40 retrospective studies with 323,244 children aged 2–20 years found that breakfast skippers had a 59% higher prevalence of obesity (OR: 1.59, 95% CI: 1.33–1.90) compared to breakfast eaters (Wang et al., 2023).

A meta-analysis of 45 observational studies has shown that skipping breakfast increases the risk of overweight/obesity. People who skip breakfast are 48% more likely to be overweight or obese and 31% more likely to have excess belly fat compared to those who eat breakfast regularly (Ma et al., 2020). Another review has shown that people who skipped breakfast at least three times a week had an 11% higher risk of being overweight or obese than those who skipped breakfast less often. However, when looking at changes in body mass index (BMI), there was no difference between those who ate breakfast and those who skipped it (Wicherski et al., 2021).

Mental Health

A systematic review and meta-analysis found that skipping breakfast is associated with an increased risk of depression and stress-related disorders (Zahedi et al., 2020). The findings suggest that breakfast consumption plays a role in mental well-being, particularly in reducing depression symptoms.

Cognitive functions

Breakfast is critical in children and adolescents’ cognitive function, academic performance, and overall well-being (Rani et al., 2020). A review of 45 studies from 43 articles examined the effects of breakfast on cognitive function, with most focusing on the immediate impact of a single breakfast (34 studies). The findings suggest that eating breakfast improves attention, memory, and executive function, especially in undernourished children, but only in the short term (the same morning) (Adolphus et al., 2016).

Does Skipping Breakfast Help with Weight Loss?

A meta-analysis of 13 RCTs involving 1,416 participants found that people assigned to eat breakfast consumed 260 kcal more per day, and skipping breakfast led to a mean weight loss of 0.54 kg (95% CI: −1.05 kg to −0.03 kg) for 4–16 weeks (Sievert et al., 2019).

The National Weight Control Registry (NWCR) has shown that 78% of successful weight maintainers reported eating breakfast daily. While this doesn’t prove that breakfast prevents weight regain, it suggests that structured eating habits may support long-term weight maintenance by helping regulate hunger and calorie intake throughout the day.

Conclusion

Eating breakfast offers several health benefits, but its role in weight management remains unclear. Some studies suggest that skipping breakfast may be linked to weight gain, while others indicate it could reduce daily calorie intake. The key takeaway? Listen to your body. If you wake up hungry, have a balanced, nutritious breakfast. But if eating early makes you hungry throughout the day, skipping breakfast might be a better choice. Whatever you decide, focus on quality, choose healthy, whole food, and eat in moderation.

References

Adolphus, K., Lawton, C.L., Champ, C.L. and Dye, L., 2016. The effects of breakfast and breakfast composition on cognition in children and adolescents: a systematic review. Advances in Nutrition7(3), pp.590S-612S.

Baltar, V.T., Cunha, D.B., Santos, R.O., Brito, F.S. & Marchioni, D.M. (2018). ‘Breakfast eating patterns and their association with BMI in adults: A systematic review and meta-analysis.’ Public Health Nutrition, 21(13), pp.2425-2435.

Chen, H., Zhang, B., Ge, Y., Shi, H., Song, S., Xue, W., Li, J., Fu, K., Teng, W. and Tian, L., 2020. Association between skipping breakfast and risk of cardiovascular disease and all cause mortality: A meta-analysis. Clinical Nutrition39(10), pp.2982-2988.

Lukomskyj, N., Shi, Y., Allman‐Farinelli, M. and Rangan, A., 2021. Associations between breakfast consumption from childhood to adulthood and cardiometabolic health: A systematic review. Nutrition & Dietetics78(1), pp.6-23.

Ma, X., Chen, Q., Pu, Y., Guo, M., Jiang, Z., Huang, W., Long, Y. and Xu, Y., 2020. Skipping breakfast is associated with overweight and obesity: A systematic review and meta-analysis. Obesity research & clinical practice14(1), pp.1-8.

Rani, R., Dharaiya, C.N. & Singh, B. (2023). ‘Breakfast consumption and mental health: a systematic review and meta-analysis of observational studies.’ Nutritional Neuroscience, 26(4), pp.653-669.

Santos, H.O. & Tinsley, G.M. (2023). ‘Is breakfast consumption detrimental, unnecessary, or an opportunity for health promotion? A review of cardiometabolic outcomes and functional food choices.’ Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy, 16, pp.123-140.

Sievert, K., Hussain, S.M., Page, M.J., Wang, Y., Hughes, H.J., Malek, M. and Cicuttini, F.M., 2019. Effect of breakfast on weight and energy intake: systematic review and meta-analysis of randomised controlled trials. bmj364.

Wang, Y., Li, F., Li, X., Wu, J., Chen, X., Su, Y., Qin, T., Liu, X., Liang, L., Ma, J. & Qin, P. (2020). ‘Breakfast skipping and risk of all-cause, cardiovascular and cancer mortality among adults: a systematic review and meta-analysis of prospective cohort studies.’ International Journal of Food Sciences and Nutrition, 71(5), pp.546-55

Wang, K., Niu, Y., Lu, Z., Duo, B., Effah, C.Y. and Guan, L., 2023. The effect of breakfast on childhood obesity: A systematic review and meta-analysis. Frontiers in Nutrition10, p.1222536.

Wicherski, J., Schlesinger, S. and Fischer, F., 2021. Association between breakfast skipping and body weight—A systematic review and meta-analysis of observational longitudinal studies. Nutrients13(1), p.272.

Zahedi, H. et al. (2020) ‘Breakfast consumption and mental health: a systematic review and meta-analysis of observational studies’, Nutritional Neuroscience, 25(6), pp. 1250–1264. doi: 10.1080/1028415X.2020.1853411.