Dieting has not always been a major concern throughout human history as getting enough calories was more important for our ancestors. The first recorded person to go on a weight loss diet was King William I of England in the 11th century, who was known to be extremely overweight. His liquid diet consisted mainly of alcohol, which helped him lose weight but ultimately led to his death. In the late 19th/early 20th century, Horace Fletcher promoted chewing food extensively as the key to weight loss and health in what became known as Fletcherism. Jean Nidetch started the first Weight Watchers group in the 1960s to help herself and friends lose weight through group support. In 1964, Robert Cameron launched The Drinking Man's