干果通常指有硬壳而水分少的一种果实(如核桃)及晒干后的水果。干果表面上看来皱皱巴巴、毫不起眼,但它们经过干燥处理后容易保存,而且恰恰是这一点使它们富含养分。干果中浓缩的能量比鲜果要多3～5倍。常吃些干果,使牙齿咀嚼硬东西而得到锻炼,可起“齿宜常叩”之功;人在咀嚼干 Dried fruit usually refers to a hard shell and a fruit with less water (such as walnuts) and dried fruits. Dried fruits appear to be crumpled on the surface, with no regard, but they are easily preserved after they have been dried, and it is precisely this that makes them rich in nutrients. Dried fruit concentrated energy than fresh fruit to be 3 to 5 times. Eat dry nuts, make the teeth chewing hard and get exercise, can play “teeth should often knock” power; people chewing