Pioneered Calorie Counting for Weight Loss: Dr. Peters is credited with popularizing the concept of counting calories to manage weight. Her book,Diet & Health: With Key to the Calories, published in 1918, was the first weight-loss book to become a bestseller [Wikipedia].
Medical Doctor and Writer: She graduated with a medical degree from the University of California in 1909, a time when few women were doctors [Smithsonian Magazine]. She also wrote a well-received newspaper column on health,Diet and Health, which she later expanded into her book [Wikipedia].
Early Life and Accomplishments: Born in 1873 in Maine, Dr. Peters went on to achieve many firsts for women. She was the first woman to intern at Los Angeles County General Hospital and later became the chair of the public health committee for the California Federation of Women's Clubs in Los Angeles [Smithsonian Magazine].