Dietary diversification is essential for several reasons: 1. Nutrient Adequacy: Consuming a variety of foods ensures intake of essential nutrients like vitamins, minerals, proteins, and fats. 2. Disease Prevention: A diversified diet can reduce the risk of chronic diseases such as cardiovascular diseases, diabetes, and certain cancers. 3. Improved Immunity: A varied diet supports a strong immune system, making the body more resilient to infections.