Why can eating only one type of food harm our health?

Eating only one type of food can harm health because no single food contains all the nutrients the body needs. Different foods provide different nutrients, such as carbohydrates for energy, proteins for growth and repair, healthy fats, vitamins, minerals, fibre, and water for proper body functions.

Relying on only one type of food may lead to nutrient deficiencies, poor growth, weak immunity, tiredness, and deficiency diseases such as anaemia or rickets. A balanced diet that includes a variety of food groups ensures the body receives all the essential nutrients required for healthy growth, development, and overall well-being.