An ad in the News and Courier, July 10, 1910. Nowadays many women pay quite a bit of money to add fat where it's showing most conspicuously on the woman shown.
The product being hawked was Marmola, whose history is described over at quackwatch.com. The main ingredient was dessicated thryoid (on the theory that obesity is caused by an under-active thyroid) and various laxatives. The federal government eventually banned the sale of Marmola, insisting that it was useless and potentially dangerous. But this only happened in the 1940s, because the maker of Marmola kept managing to win the court cases brought against it in the 20s and 30s.