A healthy diet includes a variety of foods that provide essential nutrients such as vitamins, minerals, protein, carbohydrates, and healthy fats. It emphasizes fruits, vegetables, whole grains, lean proteins, and healthy fats while limiting processed foods, sugar, and saturated fats.

Maintaining a balanced diet involves eating diverse food groups in appropriate portions, following dietary guidelines, staying hydrated, and avoiding excessive intake of unhealthy foods. Regular meal timings and mindful eating also contribute to dietary balance.

Common deficiencies include iron, vitamin D, calcium, vitamin A, and B vitamins. These deficiencies can lead to health issues such as anemia, weakened bones, impaired immunity, and vision problems.

Habits include planning meals ahead, reading nutrition labels, cooking at home, eating slowly, and avoiding distractions during meals. Regular physical activity also complements good nutritional practices.