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Why skipping breakfast may affect your energy levels
16th July, 2026 05:48 PM
For many people, mornings are a rush whether it is getting children ready for school, beating traffic or catching an early class, breakfast is often the first thing to be sacrificed.
While skipping breakfast occasionally is unlikely to cause harm for most healthy people, making it a daily habit may leave you feeling tired, less focused and hungrier later in the day.
Research suggests that breakfast can play an important role in supporting energy levels, concentration and overall health, although the benefits depend on the quality of the meal and an individual’s lifestyle.
Your body needs fuel after an overnight fast
While you sleep, your body continues to use energy to keep your heart beating, lungs working and cells repairing themselves. By morning, your body has gone for several hours without food.
Eating breakfast replenishes energy stores and provides nutrients needed to power the brain and muscles for the day ahead.
Without that morning fuel, some people experience fatigue, irritability or low energy before lunchtime.
Breakfast Can Support Brain Function
The brain depends on glucose from food as one of its primary sources of energy. A systematic review published in the American Journal of Clinical Nutrition found that eating breakfast particularly one containing a balance of carbohydrates, protein and healthy fats may improve memory, attention and other aspects of cognitive performance, especially among children and adolescents.
This is one reason why nutrition experts encourage students and professionals to start the day with a nutritious meal before school or work.
Skipping breakfast may increase hunger later
Many people who skip breakfast find themselves feeling extremely hungry by midday. This can lead to overeating or choosing foods that are high in sugar, refined carbohydrates or unhealthy fats.
However, research on breakfast and weight management is mixed.
A review published by the U.S. National Institutes of Health found inconsistent evidence on whether eating or skipping breakfast changes total daily calorie intake, highlighting that overall diet quality matters more than breakfast alone.
Research on poorer health
A 2025 systematic review that analysed 66 studies reported that regularly skipping breakfast was associated with higher risks of obesity, poorer blood sugar control, cardiovascular disease and mood disturbances.
The researchers also found evidence linking breakfast omission with reduced cognitive performance and lower energy levels, although they noted that more long-term studies are needed to establish cause and effect.
This means breakfast should be viewed as one part of a healthy lifestyle rather than a miracle meal.
