Vitamins(维生素) Vitamins are organic substances that, along with carbohydrates, proteins, fats, and inorganic salts, are required in the diet for normal health and growth of an organism The early history of vitamins can be traced to observations that certain diets produced disease that could be cured by a supplement of another foodstuff. For example, the ancient s Arab physicians and their successors valued the use of liver to cure night blindness, and the North America Indian knew that scurvy( (坏血病) could be treated by a tea made from cedar(*)leaves. In seventeenth century, it was standard procedure for the british Navy to provide lemon juice for its sailors to prevent scurvy
Vitamins(维生素) Vitamins are organic substances that,along with carbohydrates, proteins, fats,and inorganic salts,are required in the diet for normal health and growth of an organism. The early history of vitamins can be traced to observations that certain diets produced disease that could be cured by a supplement of another foodstuff. For example , the ancient Arab physicians and their successors valued the use of liver to cure night blindness, and the North America Indian knew that scurvy(坏血病） could be treated by a tea made from cedar(杉树) leaves. In seventeenth century, it was standard procedure for the British Navy to provide lemon juice for its sailors to prevent scurvy
The term vitamin is derived from the words vital and amine because vitamins are required for life and were originally thought to be amines. Although not all vitamins are amines they are organic compounds required by humans in small amounts from the diet. An organic compound is considered a vitamin if a lack of that compound in the diet results in overt symptoms of deficiency
The term vitamin is derived from the words vital and amine, because vitamins are required for life and were originally thought to be amines. Although not all vitamins are amines, they are organic compounds required by humans in small amounts from the diet. An organic compound is considered a vitamin if a lack of that compound in the diet results in overt symptoms of deficiency
维生素也称维它命,是人体不可缺少的种营养素,它 是由波兰的科学家丰克为它命名的,丰克称它为“维持生命 的营养素”。人体中如果缺少维生素,就会患各种疾病。因 为维生素跟酶类一起参与着肌体的新陈代谢,能使肌体的机 能得到有效的调节 912年,波兰科学家丰克,经过千首次的试验终于从 米糠中提取出≮种能够治疗脚气病的白色物质。这种物质被 丰克称为“维持生命的营养素”,简称vam维他命 也称维生素。 随着时间的推移,越来越多的维生素种类被人们认识和 发现,维生素成了个天家族。人们把它们排列起来以便于 记忆维生素按A、B、C直排列到、P、U等几种 现代科学进步肯定了维生素对人体的抗衰老、防止心脏病 抗方面的功能
维生素也称维它命，是人体不可缺少的一种营养素，它 是由波兰的科学家丰克为它命名的，丰克称它为“维持生命 的营养素”。人体中如果缺少维生素，就会患各种疾病。因 为维生素跟酶类一起参与着肌体的新陈代谢，能使肌体的机 能得到有效的调节。 1912年，波兰科学家丰克，经过千百次的试验，终于从 米糠中提取出一种能够治疗脚气病的白色物质。这种物质被 丰克称为 “维持生命的营养素”，简称Vitamin(维他命）， 也称维生素。 随着时间的推移，越来越多的维生素种类被人们认识和 发现，维生素成了一个大家族。人们把它们排列起来以便于 记忆，维生素按A、B、C一直排列到L、P、U等几十种。 现代科学进一步肯定了维生素对人体的抗衰老、防止心脏病、 抗癌方面的功能
Well-balanced diet Fats. oils & sweets USE SPARINGLY Milk, yogurt at, pou try, cheese h, dry beans, 2-3 SERVINGS eggs & nuts 2-3 SERVINGS Vegetables Fruit 3-5 SERVINGS 2-4 SERVINGS Bread, cereal. rice pasta 6-11 SERVINGS 答ADAM
Well-balanced diet
Healthy diet Choose fruits and vegetables over unhealthy fatty foods SADAM
Healthy diet