Why Do You Easily Get Hungry During Fasting?

Why Do You Easily Get Hungry During Fasting?
Illustration of suhoor. Credit: Freepik

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Fasting requires abstaining from food and drink for a set period of time. Although it may seem challenging, fasting is a moment many look forward to.

There are many theories suggesting that the body can adapt to a restricted diet, such as the one followed during fasting. However, some people find that they get hungry more quickly while fasting. Do you experience this too? Find out why in the following discussion.

 

Why Do You Easily Get Hungry During Fasting?

There are several key reasons why you might feel hunger more intensely during fasting:

Changes in Blood Sugar Levels

A common cause of rapid hunger during fasting is the drop in blood sugar levels. After eating suhoor, the body processes the food, converting it into glucose for energy.

Over time, especially when consuming foods with a high glycemic index, blood sugar levels can decrease quickly, which often triggers hunger.

Poor Eating Habits During Suhoor

The type of food you consume during suhoor plays a significant role in how hungry you feel throughout the day. Consuming simple carbohydrates, such as white rice or sugary foods, causes blood sugar levels to spike rapidly, followed by a sharp drop, which can lead to hunger much sooner.

In contrast, if your suhoor includes foods rich in fiber, protein, and healthy fats—like eggs, chicken, fish, meat, avocado, and vegetables—you’re more likely to feel full longer. Choosing complex carbohydrates, like whole wheat bread or oatmeal, can also help maintain fullness for a longer period because they take longer for your body to digest.

Dehydration and Electrolyte Imbalance

During fasting, your body loses fluids more rapidly, particularly in hot weather or during intense physical activities. This can lead to dehydration and an imbalance in electrolytes.

Interestingly, dehydration and electrolyte deficiencies can trigger hunger signals, even though your body is actually in need of fluids more than food.

Lack of Sleep

Inadequate sleep can throw off the balance of hormones in your body, particularly leptin and ghrelin, which regulate hunger and satiety. A lack of sleep increases the production of ghrelin, making you feel hungrier.

Intense Physical Activities

While exercising during fasting can help burn energy, intense physical activity can also accelerate the onset of hunger. Though exercise is important for staying fit during fasting, it’s best to avoid heavy or strenuous activities.

It’s recommended to schedule exercise either before suhoor, before breaking the fast, after breaking the fast, or before bed, and focus on light to moderate intensity exercises.

 

These are some of the reasons why you may feel hungry faster while fasting. Knowing the causes can help you take the right steps to prevent this.

If you have any questions about fasting or need health advice, you can consult a doctor through the Ai Care app. Simply download the app from the App Store or Play Store for convenient consultations.

 

Looking for more information about other diseases? Click here!

 

Writer : Agatha Writer
Editor :
  • dr Hanifa Rahma
Last Updated : Thursday, 17 April 2025 | 14:36

Jillian Kubala, MS, RD (2024). 9 Potential Intermittent Fasting Side Effects. Available from: https://www.healthline.com/nutrition/intermittent-fasting-side-effects 

Cleveland Clinic (2023). Why Do I Get Hunger Pangs?. Available from: https://health.clevelandclinic.org/hunger-pangs 

Timothy Huzar (2023). Why do I wake up hungry?. Available from: https://www.medicalnewstoday.com/articles/324812 

Brianna Elliott, RD (2024). 14 Reasons Why You’re Always Hungry. Available from: https://www.healthline.com/nutrition/14-reasons-always-hungry#sleep