Healthy eating is considered one of the fundamental pillars for maintaining human health and preventing many chronic diseases. It refers to consuming a balanced diet that contains all essential nutrients in appropriate amounts to meet the body’s needs and support its vital functions. Concept of Healthy Eating Healthy eating is a balanced dietary system that includes carbohydrates, proteins, healthy fats, vitamins, minerals, and dietary fiber, while reducing the intake of sugars, saturated fats, and processed foods. Components of a Healthy Diet 1. Complex Carbohydrates: Such as whole grains, brown rice, and oats; they are a primary source of energy. 2. Proteins: Found in lean meats, fish, legumes, and eggs; they contribute to building and repairing body tissues. 3. Healthy Fats: Such as olive oil, nuts, and avocados; they play an important role in heart and brain health. 4. Vitamins and Minerals: Available in fruits and vegetables; they are essential for strengthening the immune system and regulating vital bodily processes. 5. Dietary Fiber: Helps improve digestion and prevents constipation and colon diseases. Benefits of Healthy Eating • Strengthening the immune system • Preventing heart disease and diabetes • Maintaining a healthy weight • Improving digestive system functions • Increasing mental and physical activity Harm of Poor Nutrition Excessive consumption of fast food and sugars leads to obesity, high blood pressure, weakened immunity, and an increased risk of chronic diseases. Conclusion Following a healthy and balanced diet is a fundamental investment in human health in the long term. It contributes to improving quality of life and preventing many health problems. Hasan Najeh Al-Mustaqbal University The First University in Iraq.