请问“fad science”和“miracle ingredients”什么意思

请问“fad science”和“miracle ingredients”什么意思
Paying for fad science and miracle ingredients is a good way to lose nothing but your cash.

花钱去买时尚的药物或者特效药除了浪费金钱外并不能得到其他更多的东西
“fad science”和“miracle ingredients意思是 时尚的药物或者特效药
原句是VOA新闻的
People throughout the world spend billions of dollars a year on weight loss pills.The U.S.government says some of these pills do not live up to advertising claims.Deborah Platt Majoras from the U.S.Federal Trade Commission,Paying for fad science and miracle ingredients is a good way to lose nothing but your cash.
一年全世界人们花了数十亿美元在减肥药上.美国政府说这些药物的效果并不如广告所吹嘘的.美国联邦贸易委员会的Deborah Platt Majoras说: 花钱去买时尚的药物或者特效药除了浪费金钱外并不能得到其他更多的东西.