disposableのプロフィール

The primary determinant of a food`s regulatory status is its intended use,which in turn is determined largely by the label and labeling information accompanying that food.Accordig to the FOOD,DRUG,and Cosmetic Act definition,foods are"article used for food or drink or components of any such article"and drugs are,in part,"articles intended for use in the diagnosis,cure,mitigation,treatment,or prevention of disease". Thus for >50 years the FDA classified all disease prevention claims as drug claims and took the appropriate enforcement action against companies that violated these regurations. This policy changed radically with the passage of the Nutrition Labeling and Education Act of 1990. これの終わり2文。要はThus　for～からがわかりません。単語単語はわかっても、意味がとれない。。ですので、訳を教えていただけないでしょうか？よろしくお願いします。