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Isaac Jennings, M.D.
December 29, 2021
Isaac Jennings, M.D.


Isaac Jennings deserves credit for being the father of medically supervised water fasting. He found that a regimen that included fasting, a vegetarian diet, pure water, sunshine, clean air, exercise, and rest was more conducive to health than allopathic drugs (treating diseases using drugs, radiation, or surgery).

From this, he concluded that most diseases were reactions to unfavorable environmental factors and that disease results from a ‘deficiency of force.’ Rest and non-interference with the body’s innate healing mechanisms are the best means to regain health. Fasting as complete physiological rest was employed to regain and maintain good health. The only “drugs” he prescribed were bread pills and colored water, along with detailed instructions for lifestyle change. After many years of successful practice, he announced that he had no faith in drugs and would no longer make any pretense of prescribing them.


“None who believe in the existence of a Supreme Creator and are in the habit of observing the exact order and harmony that prevail in all the material substances and bodies around them, will question that their own bodies, which are so “fearfully and wonderfully made,” are constituted in accordance with fixed principles and that ordinarily, at least, all the vital machinery of their physical systems is controlled by expressed law.”

Excerpt From Fasting Supervision and Lifestyle Care (Burton, Burton and Krackler)
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