Why we overeat and how to stop it: causes, tips and healthy nutrition

Hunger is one of the oldest evolutionary mechanisms that ensures human survival. However, for many people today, eating has become much more than a biological necessity. Food is often used for entertainment, stress relief, or emotional comfort.

Unlike many other basic needs, the urge to snack or indulge in comfort foods can be difficult to control. Overeating often leads to excess weight, increasing the risk of serious health conditions such as high blood pressure, coronary heart disease, type 2 diabetes, and other metabolic disorders.

Common causes of overeating

Our appetite is largely regulated by two hormones: ghrelin, which stimulates hunger, and leptin, which signals fullness to the brain. When the balance between these hormones is disrupted, controlling appetite becomes much more challenging.

Medical professionals refer to persistent excessive hunger as polyphagia, and it can have several causes, including:

• Chronic sleep deprivation. Lack of sleep increases ghrelin production while reducing leptin levels, making you feel hungrier because the body requires more energy;
• Poorly balanced nutrition. Diets high in refined carbohydrates and added sugars cause rapid spikes in blood glucose followed by sharp drops, often triggering intense hunger;
• Stress and negative emotions. Stress increases cortisol production, which stimulates cravings for calorie-dense foods that temporarily boost dopamine — the brain’s feel-good chemical;
• Dehydration. The brain’s thirst and hunger centers are closely connected, causing many people to mistake thirst for hunger;
• Hormonal and endocrine disorders. Certain medical conditions affect hormone balance, including ghrelin and leptin, resulting in increased appetite;

Overeating may also result from unhealthy eating habits, such as snacking while watching TV, scrolling through a smartphone, reading, or using sweets as an emotional reward.

How to stop overeating

If your frequent hunger is not caused by an underlying medical condition, improving your diet and eating habits can significantly reduce overeating.

Some of the most effective strategies include eat breakfast, lunch, and dinner at approximately the same time every day. Consistent meal timing helps regulate appetite. Avoid using smartphones, computers, or watching television while eating. Mindful eating helps prevent consuming excess calories. Chew your food slowly and enjoy every bite. It takes about 20 minutes for fullness signals to reach the brain, so eating more slowly naturally reduces overeating.

One of the best ways to control excessive hunger is to include more healthy fats and dietary fiber in your daily diet.

Omega-3 and Omega-6 fatty acids play an important role in lipid metabolism and help support overall health. Dietary fiber digests slowly, promoting longer-lasting satiety while containing very few calories. The body also expends additional energy digesting fiber-rich foods.

Fiber provides additional health benefits by supporting healthy digestion, promoting regular bowel movements, nourishing beneficial gut bacteria, reducing bloating and digestive discomfort.

Excellent natural sources of Omega fatty acids include flaxseed oil, sunflower oil, walnut oil and other cold-pressed vegetable oils.

Dietary fiber is abundant in flour made from defatted seeds and nuts, including flaxseed meal, pumpkin seed flour, sesame flour, and milk thistle meal.

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