Some foods have a greater concentration of nutrients than others.
Some foods are very high in Vitamin C, but low in protein, like oranges. Some foods are very poor in all nutrients. It is important to eat enough nutrient rich foods and not to fill up on nutrient poor foods - otherwise we will not be healthy. This is called eating a balanced diet - balancing a wide variety of foods to make sure we get enough nutrients to stay healthy. This activity allows children to 'see', weigh and compare the fibre content in portions of food.