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Reasons Why You're Not Hungry Despite Not Eating for Two Days

Reasons Why You're Not Hungry Despite Not Eating for Two Days

Kent Yoshimura -


Have you ever experienced a scenario where you expected to be ravenous after skipping a meal, only to find yourself surprisingly less hungry than you thought? Or perhaps you've noticed that as you go without eating for an extended period, your appetite seems to diminish. These instances raise intriguing questions about the relationship between eating less and feeling less hungry, which can be influenced by several physiological and psychological factors such as hormonal regulation, metabolic adaptation, emotional influence, cognitive distraction, etc. In this article, we'll delve more into these scientific explanations that shed light on this intriguing phenomenon.


Should I be concerned if I don't feel hungry despite not eating?

If you find yourself not feeling hungry despite not eating for two days, it is important to approach the situation with an understanding of the potential reasons behind it. While it's not uncommon for appetite to fluctuate due to various factors such as stress, emotions, or changes in routine, a lack of hunger for an extended period may be cause for concern. In such cases, it is advisable to consult a healthcare professional for a proper evaluation to rule out any underlying health issues.

Physiological Reasons for Decreased Hunger:

There are several ways our body's physiology helps reduce hunger when we eat less. These mechanisms work together to regulate appetite and create a sense of fullness. Let's explore these physiological reasons in simpler terms:

  1. Hormonal Control: Hormones play a role in hunger regulation. When we eat less, the level of ghrelin, the hormone that stimulates hunger, decreases. This decrease in ghrelin levels leads to a decrease in hunger. Additionally, other hormones like peptide YY (PYY) and glucagon-like peptide-1 (GLP-1) increase, which make us feel fuller and more satisfied.

  2. Metabolic Adaptation: Our body is adaptable and can adjust its metabolism when we eat less. It begins by breaking down stored glycogen, a form of stored energy, to provide glucose for essential functions. As glycogen levels decrease, our body enters a state called ketosis. During ketosis, it uses ketone bodies, a different source of energy, to fuel our cells. This shift in metabolism helps suppress appetite and reduces feelings of hunger.

  3. Nutrient Sensing: Our body has a way of sensing nutrient availability. When we eat less, signaling pathways in our body communicate that food is limited. These pathways, such as the mTOR pathway, help regulate our appetite based on the available nutrients. Consequently, our body adjusts hunger and fullness signals accordingly, leading to a decrease in hunger.

  4. Gut-Brain Communication: The gut and the brain communicate with each other through nerves and chemical signals. When we eat less, changes occur in this communication system. For example, the gut releases hormones like cholecystokinin (CCK) that signal to the brain that we are full and satisfied. Additionally, the gut microbiota, the collection of microorganisms in our gut, can influence appetite regulation through the production of substances that affect our hunger and satiety.

Psychological Factors Influencing Decreased Hunger:


In addition to physiological mechanisms, several psychological factors contribute to feeling less hungry when eating less. These aspects of our mindset and emotions play a significant role in regulating our appetite. Let's explore alternative words and phrases to describe these psychological reasons:

  1. Emotional Influence: Our emotions can have a profound impact on our appetite. When we are highly stressed or experiencing intense emotions, such as anxiety or excitement, it can temporarily suppress our feelings of hunger. These strong emotional states divert our attention away from food and can diminish our appetite.

  2. Cognitive Distraction: Engaging in activities that capture our attention and focus, such as work, hobbies, or entertainment, can distract us from feelings of hunger. When our mind is occupied, we may not perceive or pay attention to hunger cues, leading to a decreased sense of hunger.

  3. Reward System Activation: Pleasurable experiences or rewarding activities can activate our brain's reward system, which can dampen our appetite. When we engage in enjoyable tasks or experience positive emotions, the brain releases neurotransmitters that provide a sense of satisfaction and reduce the intensity of hunger sensations.

  4. Stress Response: During times of heightened stress, our body releases cortisol, a hormone that plays a role in the stress response. Cortisol can suppress appetite and reduce feelings of hunger. This physiological response is a protective mechanism that allows our body to focus on dealing with the stressor rather than food intake.

  5. Mind-Body Connection: Our thoughts and perceptions can influence our appetite. Positive thoughts, a calm state of mind, and mindful eating practices can enhance our awareness of hunger and fullness cues, helping us regulate our food intake more effectively.

Ways to Stimulate Appetite After Not Eating:

While eating less and experiencing a decrease in hunger can be beneficial for weight management or specific health conditions, there may be instances when it is necessary to increase appetite. If you find that your reduced hunger is impacting your overall nutritional intake, here are some strategies you can try to stimulate your appetite:

  1. Eat Smaller, Frequent Meals: Instead of large meals, try eating smaller, more frequent meals throughout the day. This can help you increase your overall calorie intake without feeling overwhelmed by large portions.

  2. Incorporate Flavorful Foods: Including a variety of flavorful foods in your diet can make meals more appealing and enhance your appetite. Experiment with herbs, spices, and different cooking techniques to make your meals more enjoyable.

  3. Engage in Regular Physical Activity: Regular exercise can help boost your metabolism and increase your appetite. Incorporate activities that you enjoy and that get your body moving to stimulate your hunger.

  4. Seek Professional Guidance: If you're concerned about your reduced appetite, consider seeking support from a healthcare professional. They can provide guidance, evaluate any underlying health issues, and recommend appetite-stimulating medications or supplements if necessary.


 While it is generally not a cause for concern if you don't feel hungry despite not eating for two days, it's important to be mindful of any persistent loss of appetite or accompanying symptoms. In such cases, consulting a healthcare professional is advisable to rule out any underlying health issues.

Understanding the physiological and psychological mechanisms behind decreased hunger can help us make informed choices about our eating habits. By recognizing the interplay between these factors, we can develop a healthier relationship with food and support our overall well-being.

Remember that everyone's appetite can vary, and it's essential to listen to your body's cues and seek professional advice when needed. If you find that your reduced appetite is impacting your nutritional intake, there are ways to stimulate your appetite, such as eating smaller, frequent meals, incorporating flavorful foods, staying physically active, and seeking guidance from healthcare professionals when necessary.

By appreciating the intricate balance between our body's physiology and our psychological state, we can make choices that support our overall well-being and nourishment. Remember to prioritize your health and well-being, and consult with a healthcare professional for personalized advice. For more information on the topic, check out our article Why Don't You Feel Hungry After Not Eating All Day?


About the Author

Ryan Chen is the CFO and co-founder of Neuro, a gum and mint company that enhances your health and wellness in the most convenient, affordable, and portable way possible.

Despite being injured in a snowboard accident that left him paralyzed at 19, Ryan went on to graduate with degrees in two very different subjects--Economics and Chemistry--and later trained in racing with the US Paralympic team. His strong intellectual background combined with vigorous resilience has earned him recognitions such as Forbes 30 Under 30. 

Find him on LinkedIn here: Ryan Chen


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