What is Intermittent Fasting?

What is Intermittent Fasting?

Written by Andrew Brewer. ⚕️Reviewed and fact checked by our medical team.

What is Intermittent Fasting?

One of the most popular weight-loss trends today is intermittent fasting. It’s sweeping the internet, and countless health experts are claiming its benefits. But what exactly is intermittent fasting?

Whether you’re looking to lose weight fast, boost your health, or be well-rested, intermittent fasting has something for you. Throughout this breakdown of intermittent fasting, we’ll take a look at the ways it affects your body as well as the many different fasting options that users can choose from.

So what is intermittent fasting? Simply put, intermittent fasting is the practice of cycling throughout the day between segments of eating and segments of fasting. The focus of intermittent fasting is on when you eat your meals. Some methods of intermittent fasting have users eat all of their meals within a 4-hour block of time and then fast for the remainder of the day.

Intermittent fasting aims to get all of your calories in within that eating window and then burn them off through the fasting phase. This is a great way to lose weight fast while still being able to eat the foods you love – within reason.

Key Takeaways

  • Intermittent Fasting is a practice of cycling throughout the day between segments of eating and segments of fasting, with a focus on when you eat your meals.
  • There are many different types of intermittent fasting that users can choose from, such as 16 and 8, 20 and 4, 22 and 2, Eat-stop-eat, and 500 or less calorie counting.
  • Intermittent Fasting can provide benefits such as muscle building and fat loss, thanks to the way the chemicals in your body respond to the fasting.
  • It’s important to be careful with intermittent fasting, as it can be addictive and could lead to serious eating disorders if not practiced responsibly.
  • Consulting with a healthcare professional before starting any new diet or exercise regimen is always a good idea, especially if you have medical conditions that may make fasting unsafe.

Many Different Types

One of the first decisions you’ll have to make with intermittent fasting is which type you’d like to use. There are tons of different fasting methods that split the day in different ways. The first one that many are introduced to is the 16 and 8. This is where the faster eats all of their calories within an 8-hour window, (typically from noon to 8 pm) and then fasts for the remainder of the day.

This is probably the most accessible intermittent fasting method as it fits most people’s schedules and really only affects breakfast. You should stop eating around 8 or 9 pm anyways as your body needs time to digest food before you go to bed, so this fasting method adheres to basic eating rules.

Many other fasting methods are simply variations on this one with different ratios. 20 and 4, 22 and 2, 18 and 6. These all utilize the same principles and offer similar results to the 16 and 8 method.

Other fasting methods break your fasting into certain days of the week. One popular method is the Eat-stop-eat method where you fast for 24-hours once or twice a week. When you’re not fasting for 24-hours, you should eat normally and cut yourself off at least three hours before bed.

The final method is the 500 or less calorie counting. This method requires you to eat 500-600 calories a day for two days of the week. The rest of the week should be normal eating.

What Does it Do to Your Body?

There are a few benefits that occur below the surface but are quite great for the body. For one, muscle building and fat loss become much easier thanks to the way the chemicals in your body respond to the fasting.

When you section off your period of eating throughout the day, you’re making space for your body to burn unwanted fat and turn nutrients into muscle. Intermittent fasting is a great way to get your human growth hormones working for you rather than against you.

Be careful because intermittent fasting isn’t for everyone. It can be addictive and could lead to some very serious eating disorders if you’re not careful. Seeing the results of intermittent fasting might inspire some to fast more which is dangerous and not what intermittent fasting is meant to do.

Take care of your body and be responsible as you intermittent fast.

Intermittent fasting could be the weight loss solution you’re looking for. It’s a fantastic way to burn fat, lose weight, and stay healthy without sacrificing some of your favorite foods throughout the day.

If you are planning to start intermittent fasting, we would like to recommend everyone to download intermittent fasting app. It will make everything a lot simpler and you will know for sure that you are doing everything right.


  • How does intermittent fasting work?

Intermittent fasting works by restricting the time window during which you eat, which results in a reduction in overall calorie intake.

  • What are the different types of intermittent fasting?

The most popular types of intermittent fasting are the 16/8 method, the 5:2 diet, and alternate-day fasting.

  • What is the 16/8 method?

The 16/8 method restricts your eating window to 8 hours and fasting for the remaining 16 hours.

  • What is the 5:2 diet?

The 5:2 diet involves eating normally for 5 days and restricting calorie intake to 500-600 calories for 2 non-consecutive days.

  • What is alternate-day fasting?

Alternate-day fasting involves alternating between days of normal eating and days of either complete fasting or very low-calorie intake.

  • What are the benefits of intermittent fasting?

Intermittent fasting has been shown to have numerous health benefits, including weight loss, improved blood sugar control, and reduced inflammation.

  • Is intermittent fasting safe?

Intermittent fasting is generally considered safe for most healthy adults, but it may not be appropriate for everyone, especially those with certain medical conditions or who are pregnant or breastfeeding.

  • What should I eat during intermittent fasting?

During the eating window of intermittent fasting, it is important to eat healthy, nutritious foods and to stay within your daily calorie needs.

  • What are some tips for starting intermittent fasting?

Some tips for intermittent fasting include starting slowly, staying hydrated, and listening to your body’s hunger signals.

Andrew Brewer

Andrew Brewer

Andrew Brewer started Fastingapps.com to give people the guidance that he never received when he was first starting. His goal is to make your goals achievable and to offer you only the best fasting apps that the internet has to offer. You're not on your own - Andrew and the entire family of reviewers at Fastingapps.com are here with you every step of the way!