Proteins are needed in higher quantities when you are suffering from dengue. It helps recovery faster and aids in retaining the nutrients lost. Eggs, chicken, fishes, dairy, and dairy products are great sources of proteins. Also drinking plenty of fluids during dengue is good to stay hydrated and maintain water and electrolyte balance of the body. Milk is energy-dense food that helps retain body energy and regain strength after the energy loss due to the infection.