Foods are not "good" or "bad"; it is the overall balance of the diet that matters. There is no perfect food that gives you everything you need. No single food provides all the nutrients essential to keep us healthy.
Different foods have different nutritional contents (in other words, they are good for us in different ways).So we need to eat a variety of foods to give us all the nutrients we need for healthy diet. A balanced diet also makes our meals more interesting.
Nutrients in foods help our bodies to do essential everyday activities. They also help our bodies to heal themselves if they are injured and a balanced diet can help prevent illness and disease.in ancient times, many foods (e.g. olive oil, pomegranates, such as ginger) were used for their healing properties.
The main nutrients are: