In order to stay healthy it is important to have a balanced diet — in other words， food that contains something from each of the three main groups of food．为了保持健康，饮食平衡很重要，换句话说，就是食用包含以下三大类的食物。
These groups are protein，carbohydrate and fat．这三大类是蛋白质、碳水化合物和脂肪。
Proteins are very important for building our bodies； they help us build new cells as old ones die．蛋白质对于构建我们的身体非常重要；当旧细胞死亡时，它帮助我们生成新的细胞。
Meat and dairy products are major sources of protein， but not the only ones — we can also get protein from fish， eggs and beans．肉类和奶制品是蛋白质的主要但非唯一来源，我们还可以从鱼类、蛋类和豆类中获得蛋白质。
Carbohydrate and fat are important to enable us to store energy — they provide fuel for the body．碳水化合物和脂肪也很重要，它们使我们能够存储能量，它们为身体加油。
Carbohydrates are found in sugar and in cereals such as rice， maize and wheat．碳水化合物可以在糖及谷类诸如大米、玉米、小麦中找到。
Fats are found in meats， vegetable oil， butter， and nuts．脂肪可以从肉类、植物油、黄油及坚果中获得。
Our body also needs minerals such as iron，calcium，and vitamins．我们的身体也需要诸如铁、钙、维他命等矿物质。
Fish，vegetables and milk contain most of the minerals we need． 鱼类、蔬菜和牛奶中包含我们所需的大部分矿物质。
Vitamins are found in fresh vegetables and fruit．维他命可以在新鲜的蔬菜和水果中获得。
