What Would Happen If You STOPPED Eating for 3 Days? (72 Hours)

URL: https://fitnessmacros.com/what-happens-if-you-stop-eating-for-3-days

Ever curious about what will be done to your body when you don’t eat for 3 straight days?That’s 72 hours with no food—only water. It can seem intimidating, but people do this for health or religious purposes. Let’s discover what actually happens to your body in that case.

First 12 Hours – Operating on What You Had Last

Your body still has energy when you stop eating. It utilizes the food you consumed previouslyThis energy comes from carbohydrates, or glucose. Your body keeps glucose in your liver and muscles. So, for the initial 12 hours, your body runs on that stored glucose to keep going.

You won’t feel all that hungry yet. You might even feel fine, like if you missed a meal. Water is important to drink, however! It assists with keeping your body going.

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12 to 24 Hours – Your Body Refers to Fat

After 12 hours, your body exhausts stored glucose. Now, your body begins utilizing fat for energy. This process is referred to as ketosis. It is as if your body is operating on backup fuel. Your body starts burning fat, and a few people describe that they are lighter and clearer-headed during this period.

But you may also begin to feel exhausted or develop a headache. That’s your body settling into this alteration. If you’re not adequately hydrated or not consuming salt, you might experience dizziness too.

24 to 48 Hours – Tapping Deeper into Fat Reserves

Now your body is predominantly burning fat to continue. You might feel less hungry because the body releases a hormone, called ghrelin, in waves—it comes and goes. Some individuals find themselves super clear-headed at this time. Others experience weakness or even crankiness.

You might also experience:

  • Dry mouth

  • Lower energy

  • Trouble sleeping

  • Bad breath (because of ketones)

Keep in mind that your body is still working hard—kept your heart beating, brain thinking, and lungs breathing—all without food!

48 to 72 Hours – Body Slows Down

By this time, you’ve gone two full days without eating. Your body slows down. That is to say, your heart rate and body temperature may slow. You could feel extremely tired or cold. You could also get dizzier if you stand up too quickly.

Your body is conserving energy because it has no idea when food arrives. Your muscles will begin to break down to use for fuel if fat is not enough. That is not a good thing in the long run.


Is It Safe to Not Eat for 3 Days?

Some people fast for 72 hours for health reasons like weight loss, blood sugar control, or giving the body a chance to “reset.” But it’s not safe for everyone. If you’re a child, pregnant, ill, or have diabetes, you shouldn’t attempt it.

Even adults in good health should only attempt it with a physician’s guidance. Fasting can be risky if not done properly

Tips If You're Thinking About Fasting

If you ever wonder about fasting, ask your parents or a physician. Never do it alone.
Some tips to remember:
Drink water – Lots! Your body requires it.
Rest – Don’t attempt strenuous exercise when fasting.
Break your fast slowly – Don’t eat a large meal afterwards. Begin with something light such as soup or fruits.
Listen to your body – If you feel ill, stop.

Final Thoughts: Your Body Is Smart!

Fasting for 3 days is hard. But your body is super smart—it knows how to keep you alive even without food for a while. Still, it’s not something to try just for fun or to lose weight quickly. Eating healthy food every day is the best way to stay strong and happy.

If you’re considering giving a fast a try, be sure to learn more and consult with someone who knows. Stop byFitnessMacros.com to get more advice on healthy living, smart eating, and feeling your best!

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