İçeriğe geç
Blog

Eating Fast: A Hidden Threat to Your Health. With today's fast pace, our eating habits are changing too.

Dr. Hüseyin Nazlıkul
Dr. Hüseyin Nazlıkul 28.07.2025 5 min read
Eating Fast: A Hidden Threat to Your Health. With today's fast pace, our eating habits are changing too.
With today's fast pace, our eating habits are changing too.

Unfortunately, we often consume our meals in a hurry, swallowing our food before it's fully chewed. But eating fast doesn't just mean leaving the table early; it brings with it a whole range of health risks, from digestive problems to obesity, and even nutrient deficiencies. As Dr. Hüseyin Nazlıkul has also emphasized, the secret to chewing well isn't just the mechanical breaking down of food into smaller pieces — it's really about taking advantage of the very important enzymes saliva produces as it interacts with food.

Beyond Chewing: The Chemical Dance of Digestion

Most people think of chewing simply as breaking food into smaller pieces. In fact, chewing is one of the first and most critical steps of digestion. In the mouth, the act of chewing activates the salivary glands, which secrete digestive enzymes such as amylase (ptyalin). These enzymes allow carbohydrates to begin breaking down while still in the mouth. When food isn't chewed enough and doesn't mix well with saliva, this pre-digestion process is disrupted. Large pieces of food reaching the stomach strain the digestive system and cause the stomach to produce more acid and enzymes. Over time, this can lead to problems such as indigestion, bloating, gas, and heartburn.

The Relationship Between the Feeling of Fullness and Time: Why Are We Always Hungry?

From the perspective of nutritional physiology, the satiety reflex is related more to time than to the amount we eat. Our brain creates the sensation of fullness by processing signals coming from the digestive system. It takes a certain amount of time for these signals to reach the brain and be processed. When we eat quickly, even if our stomach is full, our brain may not yet have received the satiety signal. This causes us to eat more than we need, and consequently increases our calorie intake.

Research shows that people who eat slowly consume fewer calories and stay full longer. For example, a study published in the Journal of the American Dietetic Association in 2014 found that people who eat quickly have a higher risk of obesity. This can be explained by the fact that the body doesn't allow enough time for the release of satiety hormones like leptin, while hunger hormones like ghrelin remain elevated for longer.

Pathophysiology and the Neural Therapy Approach: The Holistic Functioning of the Digestive System

The habit of eating fast doesn't just affect the digestive organs — it also has negative effects on the nervous system and the gut-brain axis. From a pathophysiological perspective, constantly eating quickly leads to chronic stress in the digestive system. This stress can disrupt the balance of the gut microbiota and pave the way for "leaky gut" syndrome. Leaky gut can cause undigested food particles and toxins to pass into the bloodstream, leading to systemic inflammation.

From a biophysical and regulation medicine perspective, the functioning of the digestive system is regulated by the autonomic nervous system (ANS). While eating quickly, the sympathetic nervous system (associated with stress) is usually active, whereas digestion requires activity from the parasympathetic nervous system (rest and digest). This imbalance can negatively affect the production of digestive enzymes, intestinal motility, and nutrient absorption.

The neural therapy approach emphasizes the importance of the functional integrity of the nervous system. The habit of eating quickly and under stress can lower the activity of important nerves such as the vagus nerve, disrupting gut-brain communication. This disruption in communication can contribute not only to digestive problems but also to mood disorders, anxiety, and depression. The gut produces a large portion of important neurotransmitters such as serotonin, and there is a strong connection between gut health and mental health.

Eating Psychology and the Road to Obesity

The habit of eating fast is also important from the perspective of eating psychology. Behaviors such as emotional eating, using fast eating as a coping mechanism for stress, and mindless eating all increase the risk of obesity. Eating under time pressure or in a hurry often prevents us from enjoying our food and experiencing the act of eating mindfully. This can negatively affect our relationship with food and lead to a feeling of dissatisfaction.

One of the first steps toward obesity is this satiety reflex not functioning properly. When we continue consuming more than our body needs, the excess calories are stored as fat. Over time, this leads to excess weight and obesity. Obesity, in turn, is a trigger for many chronic diseases, such as heart disease, diabetes, high blood pressure, and certain types of cancer.

New Studies and a Look Toward the Future

Recent scientific studies have focused on the long-term health effects of the habit of eating quickly. For example, an article published in the journal Nutrients in 2023 showed that eating slowly improves blood sugar control and reduces insulin resistance. These findings support the hypothesis that eating quickly may increase the risk of type 2 diabetes.

In addition, research on the gut microbiota reveals that eating quickly can negatively affect the diversity and balance of the intestinal flora. A healthy gut microbiota is vital not only for digestion but also for the immune system and overall health.

Conclusion: Mindful Eating and a Healthy Future

As Hüseyin Nazlıkul has also underlined, eating fast is not just a habit — it's a complex issue that profoundly affects our health. Affecting factors ranging from digestive enzymes to gut-brain communication, from the satiety reflex to obesity risk, this is a health threat brought on by modern life.

For this reason, it's of great importance to review our eating habits and move toward mindful eating. Chewing our food slowly and thoroughly, savoring our food, and setting aside enough time for our meals won't just ease our digestive system — it will also help us properly receive satiety signals, preventing unnecessary calorie intake. These simple changes will help us live a healthier life in the long run and prevent serious health problems like obesity.

Do you set aside more time for yourself when eating, or do you find yourself unknowingly rushing through your meals?

Dr. Hüseyin Nazlikul