By Dr. Lulu Hunt Peters
In the book, [Dr. Lulu Hunt Peters] explained the concept of the calorie as a scientific unit of measurement of the energy potentially available from food. The concept of the calorie was so new that her book even provides instruction on the word's pronunciation. She explains the importance of balancing food intake and energy used, and suggests a number of exercises, supported with simple cartoons.
(Description from Wikipedia)
By Michael Pollan
Michael Pollan presents the case for a balanced diet in this New York TImes Article.
By George Cheyne
George Cheyne urges the public to turn to vegetarianism and exercise to improve one’s health and live a long life.