Is Intermittent Fasting Effective In Weight Loss?

Is Intermittent Fasting Effective In Weight Loss?

Staff Writer
5 minute read

Is Intermittent Fasting Effective In Weight Loss?

Intermittent fasting has gained popularity in recent years as a weight loss strategy. But does it really work? This article will examine the current research on the effectiveness of intermittent fasting for weight loss, as well as potential risks and considerations to keep in mind.

What is Intermittent Fasting? 

Intermittent fasting is a pattern of eating that involves regularly alternating between periods of eating and periods of not eating. There is some evidence to suggest that intermittent fasting may have various health benefits, such as weight loss, improved insulin sensitivity, and reduced inflammation. 

Types of Intermittent Fasting 

There are several different types of intermittent fasting, but the most common involve restricting food intake for certain periods of time, such as:

  • The 16/8 method. This involves restricting food intake to 8 hours of the day and abstaining from food for the remaining 16 hours. For example, you might eat between the hours of 12pm and 8pm and then fast for the rest of the day. There are many variations of this type of fasting, for example, you could choose to do 18/6 where you eat for 6 hours and fast for 18, or 14/10, and so on.

  • The 5:2 diet. This involves eating normally for 5 days of the week and restricting food intake to 500-600 calories per day for the other 2 non-consecutive days.

  • The alternate day fasting method. This involves alternating between days of eating normally and days of restricting food intake to about 500-600 calories.

Is Intermittent Fasting Effective In Weight Loss? 

Intermittent fasting is effective for weight loss, but it is not a guarantee. Like any diet or weight loss plan, the effectiveness of intermittent fasting will depend on a variety of factors, including the specific type of intermittent fasting being followed, an individual's starting weight and diet, their activity level, and their overall lifestyle.

Some research suggests that intermittent fasting may be effective for weight loss due to its potential to help reduce overall calorie intake and increase weight loss hormones such as norepinephrine. However, it is important to note that weight loss is not necessarily a direct result of intermittent fasting itself, but rather a result of the calorie deficit that is created when food intake is restricted.

It is also important to consider that weight loss is not the only factor that should be considered when evaluating the effectiveness of a diet or eating pattern. Other factors such as overall health, nutrient intake, and sustainability should also be taken into account.

What can I eat while intermittent fasting? 

During periods of eating while following an intermittent fasting plan, you can eat a variety of foods. It is important to focus on whole, unprocessed foods such as vegetables, fruits, whole grains, lean proteins, and healthy fats. These types of foods are generally high in nutrients and support overall health.

It is also important to pay attention to portion sizes and to be mindful of your overall calorie intake. If your goal is weight loss, it is important to create a calorie deficit by consuming fewer calories than you burn through your daily activities and exercise.

While following an intermittent fasting plan, it is generally recommended to avoid or limit foods and beverages that are high in added sugars, unhealthy fats, and excess calories. These types of foods and beverages can contribute to weight gain and may negate some of the potential health benefits of intermittent fasting.

Finally, it is also important to stay hydrated while following an intermittent fasting plan. Water, unsweetened tea, and other low-calorie beverages can help you stay hydrated and support overall health.

Side Effects of Intermittent Fasting

  • Hunger. It is common to experience hunger during periods of fasting, especially if you are not used to skipping meals or restricting food intake.

  • Low energy. Intermittent fasting may lead to decreased energy levels, especially during periods of fasting.

  • Headaches. Some people may experience headaches while fasting, possibly due to changes in blood sugar or dehydration.

  • Constipation or diarrhea. Intermittent fasting may affect bowel movements and may cause constipation or diarrhea in some people.

  • Mood changes. Intermittent fasting may cause mood changes, such as irritability or difficulty concentrating, in some people.

  • Disrupted sleep. Fasting for extended periods of time may disrupt sleep patterns and cause difficulty falling or staying asleep.

  • Muscle loss. Intermittent fasting may lead to a small amount of muscle loss, especially if done with insufficient protein intake.


Can you lose weight with 16 hours intermittent fasting?

Yes, you can lose weight with 16 hours of intermittent fasting. In fact, this pattern of fasting is one of the most popular due to its practicality. What makes the 16:8 schedule practical is that the majority of the fasting window is taken up by sleeping and you can easily fit multiple meals within 8 hours. 

How much weight can you lose in a week with intermittent fasting?

You can lose up to 5 pounds in a week with intermittent fasting but in most cases, it will be water weight. It is important to note that one week is too soon to assess the effectiveness of a diet. 

How much weight can you lose in a month with intermittent fasting?

You can lose up to 10 pounds in a month of intermittent fasting. However this figure will vary widely depending on multiple factors such as age, level of physical activity, health status, and most importantly, diet quality. 

To speed up your results, try a combination of intermittent fasting and keto or another weight loss diet for faster results. 

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