膳食在烹饪过程中,由于受热、调味物质以及一些添加剂等因素的作用,其所含营养物质会发生一定的变化,有的会造成营养素的损失,降低其营养价值。目前不少人由于缺乏必要的烹调知识,在食物制作过程中,已造成了大量营养的无端损失,这些都是应该而且可以避免的。一、采用合理的加工方法正确的食品加工方法,可以大大减少营养物质的损失。首先是合理洗涤烹饪原料。烹饪原料 Diet In the cooking process, due to heat, flavoring substances and some additives and other factors, the nutrients contained in it will change some, some will cause the loss of nutrients, reducing its nutritional value. At present, many people, because of the lack of necessary cooking knowledge, have caused unwarranted losses of substantial nutrients in the process of food production, which should and can be avoided. First, the use of a reasonable method of processing the right food processing methods, can greatly reduce the loss of nutrients. The first is a reasonable washing of cooking ingredients. Cooking ingredients