Which author wrote The Jungle, influencing the first Food and Drug Act in the US in 1906?

Upton Sinclair authored "The Jungle," a novel published in 1906 that vividly depicted the unsanitary and inhumane conditions of the meatpacking industry in Chicago. The graphic descriptions of the processing of meat and the associated health hazards shocked the public and prompted widespread concern about food safety and public health. This outcry played a pivotal role in raising awareness and led to significant reforms in food safety regulations, ultimately resulting in the passage of the Pure Food and Drug Act in the same year. Sinclair's work is crucial in understanding how literature can influence public policy and legislative actions regarding health and safety standards in the food industry.