Science Explains What Happens to Your Body When You Skip Meals

Science Explains What Happens to Your Body When You Skip Meals

skip mealsHealth


When life gets busy, it’s tempting to skip meals. Plus, right now, intermittent fasting is a growing popular trend. But does skipping meals really help you lose weight? Is it healthy? Scientists weigh in on this subject. Here is what they’re saying.

What happens if you skip a meal?

Everyone skips meals once in a while. But if you’re skipping meals regularly, you may not realize the impact it’s having on your body.


1 – Blood sugar drop

When you skip meals, your blood sugar plunges. Your brain needs glucose to function, and fasting causes your glucose levels to drop> Thus, your brain may feel foggy, as if you can’t think straight. You may also feel irritable and tired. Your body is under stress, so it makes extra cortisol to compensate.

skip meals
2 – Decrease in metabolism

When you skip meals regularly, your metabolism slows down. Your body stops burning calories, so you can’t lose weight. Your body starts working hard to survive, so it craves nourishment.


3 – Poor food choices

When you skip a meal, you feel starving. When you decide to eat, you’re prone to eat carbohydrates or sugary foods because these make you feel better right away. But loading up on carbs causes your glucose levels to spike, then fall quickly. You create a cycle of lowering and raising your glucose levels. This is dangerous and can lead to diabetes down the road.

4 – Depression

Regularly skipping meals increases your stress level leading to anxiety and depression. Your blood sugar dips and your cortisol levels increase. This drop causes moodiness and mental exhaustion. One cross-section study revealed that university students who frequently skip breakfast showed depression symptoms.

 5 – Strong cravings for sugar and carbs

Another consequence of skipping meals is low blood sugar, leading to strong cravings for sugar and simple carbohydrates. Simple sugars get broken down quickly in your body. There’s a spike in your blood’s glucose levels, so you get a short blast of energy that doesn’t last long.


Simple carbs include the following:

Raw sugars

  • Corn syrup
  • High fructose corn syrup
  • Fruit (fructose) juices


  • Candy
  • Baked goods
  • Cereals with sugar
  • Table sugar

6 – Weight gain

If you’re trying to lose weight by regularly skipping meals could backfire on you. One study found that meal skipping, especially breakfast, was related to obesity.

 7 – Mess up your digestive system

When you skip meals, it affects your gut. It can lead to diarrhea or constipation. Plus, your stress levels are elevated, which also affects your digestive system. Over time, skipping meals, then eating a lot of food creates irregularity and could lead to digestive system problems like IBS. Eating regular, fiber and plant-rich foods help your digestive system function correctly.

8 – Risk of an eating disorder

Skipping meals and fasting put you at risk for an eating disorder. Not maintaining a normal meal routine combined with healthy exercise sets you up for poor health and a cycle of losing weight quickly through fasting. Eating disorders like anorexia, bulimia, and orthorexia (an obsession with eating healthy, fad diets, and food planning to the point where your health suffers) all started by irregular eating, guilt about eating, and a poor body image.

If you think you may be struggling with an eating disorder, talk to your doctor, or a counselor right away. Eating disorders can lead to health problems down the road that can make your life miserable.


What is intermittent fasting?

circadian rhythm

Intermittent fasting has gotten a lot of interest over the past couple of years. The premise of this eating pattern is that you limit the time during the day when you eat so you can lower your calorie intake. Usually, you only eat during an 8-hour window, fasting for 15 to 16 hours. So, if you stop eating at 7:00 in the evening, you don’t eat again until 11:00 am the next day. The jury is still out as it whether intermittent fasting causes weight loss and if it’s healthy for you.

Researchers say that the timing of your meals isn’t usually the biggest factor to your weight loss, but what and how much you’re eating is important.  Eating a diet high in whole grains, dairy, vegetables, and fruits give you the greatest advantages to be healthy. Moderate to intense exercise at least 2 1//2 to 5 hours a week is also important for your health. Intermittent fasting isn’t safe for everybody, especially if you have health problems. It’s best to talk to your doctor before you do this fast.



Is intermittent fasting healthy?

If you’re looking for a quick way to lose weight, intermittent fasting may not be your best choice. The question of intermittent fasting’s long-term health effects on humans should involve more research. Researchers are still trying to confirm if an intermittent fasting pattern is safe for healthy people, both old and young. So far, most of the research has been done on middle-aged, overweight individuals.

Check with your primary care doctor for specific guidance on whether intermittent fasting will work well for you.

Your subscription could not be saved. Please try again.
ThankThank you! Your free book preview is in your email. If you don’t see it immediately, please check your spam or promotions folder.