Eat Fat And Grow Slim

by Richard Mackarness, M.B.,B.S. (1958)

From the Foreword by Sir Heneage Ogilvie, KBE, DM, M CH, FRCS
Consultant Surgeon, Guy's Hospital, Editor of 'The Practitioner'
Late: Vice-President of the Royal College of Surgeons

THE STATISTICIAN looks on nutrition as a mater of calories, and on obesity as a question of upset caloric equilibrium. A calorie is a unit of heat, a unit of potential energy, but not a unit of nutrition. Prison governors, school superintendents, dictators whether of a nation or of a small community, talk in calories to prove that they are feeding their charges or their victims adequately. Fellows of the Royal Society, and doctors with political leanings, talk in calories as if the human body were a machine requiring a certain amount of fuel to enable it to do a certain amount of work.

A motor-car needs calories, and we give it calories in the form of petrol. If we give it good petrol it will do good work for quite a long time. But even a Rolls-Royce cannot find its own fuel. It cannot separate motor spirit and lubricating oil from the crude mixture brought by a tanker from the wells of Kuwait. It cannot clean its own pipes, clear its own choked jets, grind its own valves, re-line its own bearings when they are worn, and replace defective parts as they need renewal. The body can do all these things. but the body is not a machine, and to do them it needs food not fuel...

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