Good and Bad Things That Can Happen to Your Body When You Skip Breakfast

Since time immemorial, we had been taught that the most important meal of the day is breakfast. There had been a lot of studies to support the claims of advantages when you eat breakfast.

Aside from being the power starter for your brain, it does help a lot to keep you through the whole day.

However, from the book entitled Breakfast is a Dangerous Meal by Terence Kealey, there are several reasons why you should ditch your morning meal.

According to the book, not eating breakfast is the healthiest choice as it helps reduce blood pressure, helps in weight loss, and increases life expectancy.

Here are some of the things that could happen when you skip breakfast:

  • When you skip breakfast, you enter a safe ketogenic state.

If you are familiar with a keto diet, then you are probably familiar with ketosis. Ketosis is a natural metabolic state when your body’s energy supply comes from ketone bodies in the blood.

This often happens when the body uses stored fat instead of carbohydrates for additional energy.

When you skip breakfast, you encourage your body to enter a safe ketogenic state. This can be beneficial if you are aiming to lose some extra pounds.

By not eating breakfast, you are restricting your body of any carbohydrates and this can cause your body to dip into fat stores for energy.

Experts say that the benefits of skipping breakfast are similar to those effects of ketogenic diet and intermittent fasting.

  • Skipping breakfast helps increase mucus levels to grow good bacteria.

The trillions of microbiomes living in your digestive tract are known to have significant functions.

Apparently, these microorganisms in our gut affect conditions that impact your brain, heart, weight, and immune system.

Latest research shows that gut bacteria undergo major changes during fasting. Another study concludes that calorie-restriction significantly promotes positive changes in the microorganisms in the gut.

Skipping breakfast is one way of limiting your calorie intake and further increase mucus levels for the good bacteria to grow.

According to a microbiologist, some good bacteria only grows and thrives when you are fasting.

  • It helps reverse the aging process.

When you skip your breakfast, you can actually accelerate autophagy. Autophagy is the cellular process that deals with the destruction of cells in the body to maintain homeostasis.

It is when the body cleans waste products left by dead and damaged cells.

Skipping a meal or two from time to time may actually be good for you in terms of cell cleaning. When you skip breakfast, the autophagic response is bumped up.

In other words, you’re giving your cells space and time needed to get DNA debris and waste products.

  • Not eating breakfast reduces your overall calorie intake.

Skipping breakfast is like doing a short-term intermittent fasting. It decreases your overall caloric intake for the day.

When you skip breakfast, your body will begin to use other fuel sources for energy, thus start oxidizing fatty acids from body fat.

If you consistently skip breakfast, you are skipping around 300-500 calories per day which can help you lose some weight.

Remember, how many calories you take is as important than how many calories you burn.

  • It does not affect your metabolism.

Despite other reports about breakfast affecting your metabolism, some experts say that skipping breakfast does not correlate with having a slow metabolism.

In the morning, your metabolism has already been slow during sleep.

Recent studies suggest that the morning meal does not seem to have an impact on the body’s metabolic processes.

The main factors that can increase metabolism are exercise, daily movement, and other. So, therefore, not eating breakfast is not an alternative to increasing your metabolism.

  • You’ll resort to unhealthy cravings later.

Not having any food in your stomach in the morning can only make you crave for more later in the day.

This can lead to unhealthy cravings and overeating during lunch or dinner to compensate for not eating breakfast.

When you are hungry later in the day, you tend to choose whatever is easily accessible even the unhealthy ones.

These bad food choices also result when you are unsatisfied with your breakfast.

So, to avoid unhealthy cravings eat something right in the morning even just a piece of fruit.

Also, a protein-packed meal can help you manage your appetite throughout the day.

  • It can mess up your brain function and emotions.

The more you don’t eat breakfast, the more you’ll get hangry throughout the day. When you are in a rush and you skip your morning meal, everything could make you feel grumpy.

A study confirmed that those who eat breakfast had a more positive mood than those who don’t eat their morning meal.

According to the researchers, skipping meal causes irritability along with fatigue and headache that can worsen your mood.

  • You miss out on essential nutrients.

When you skip breakfast, you are missing out on the consumption of much-needed nutrients for your body.

If your goal is for weight loss, not eating a morning meal can lessen your calorie intake.

But skipping breakfast also means no energy for your body since breakfast is a great time to get essential nutrients from many healthy foods.

And when this happens, it can weaken your immunity. Not having anything in your stomach can trigger damage to the cells and can affect the healthy cells that work for immunity.

If you are not yet hungry, you can munch on something for breakfast like a bowl of oatmeal, hard boiled egg, or fruit smoothie.

This can help start your day healthy and keep blood sugar levels stable.

  • It triggers the release of cortisol thus increases your stress hormones.

According to a study from University of California, those who skipped breakfast had higher cortisol levels than those who eat breakfast.

Aside from that, those who don’t have higher blood pressure.

The cortisol levels increase to maintain the blood glucose levels that the brain needs in order to function properly.

If you skip breakfast, the cortisol levels will keep on increasing and eventually cause insulin resistance.

Stress has been proven to make you gain more weight. To battle this effect, you can check out this list of foods that turn off stress hormones.

  • An empty stomach is one of the reasons of bad breath.

Halitosis or bad breath is somewhat worse in the morning especially when you skip your breakfast.

According to US News and World Report, morning meal can help stimulate saliva production and scrubs your tongue off bacteria that causes bad breath.

There is nothing that will neutralize the morning odor in your mouth if you will not eat any morning meal. Of course, brushing your teeth is still the best cure for morning breath.

  • Higher risks of heart disease and diabetes.

According to a recent study, not consuming breakfast can affect your blood sugar levels and can make you more susceptible to obesity.

If this happens, it can also increase your risk for heart disease, obesity, high blood pressure, high cholesterol and diabetes.

In connection to that, another study from a nutrition expert concludes that the people who skip breakfast more than four times are likely to be obese than those who eat something for breakfast.

  • Increases level of acidity.

Skipping breakfast is one of the reasons of acidity as well as other stomach problems like gastric reflux, stomach pain and flatulence.

The body functions to release acid in the stomach for digestion when the body feels hungry and needs fuel.

If you are on an empty stomach for a long period of time, there is an increased secretion of gastric acid in the stomach.

And then, when this acid does not get food to process, it will eventually surge up nearby stomach lining.

Eventually, this can cause severe problems like ulcers and other abdominal pain.

  • It can worsen menstrual cramps.

Not eating your breakfast when you’re having your period can possibly worsen your menstrual cramps.

Aside from extreme headache, it can also cause cases of dizziness that can add up to existing dysmenorrhea symptoms.

A study conducted by Japanese researchers suggest that those who don’t eat breakfast had poor general health, painful period cramps, and irregular period.

Aside from that, skipping breakfast while on your period may increases chances of headaches and dizziness. This is because the body lacks a fuel to the brain for the proper functioning of the brain cells.


Skipping breakfast has its own set of risks and rewards. If you are skipping breakfast for a specific and controlled eating plan like intermittent fasting or keto diet, it can have its advantages.

But, skipping morning meals and then overeating later in the day can lead to negative effects in the body.

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