Biologic living (the Battle Creek Idea)
- The colon's putrefactive bacteria generate toxins that are absorbed into the body (autointoxication, or intestinal toxemia), and this self-poisoning is a near-universal cause of chronic disease and premature aging. refuted
- Adopting 'biologic living' (the Battle Creek Idea): an antitoxic vegetarian diet, bowel regularity and colon hygiene, hydrotherapy, exercise, fresh air, and abstinence from alcohol and tobacco, preserves health and prolongs life. untested
- Securing frequent bowel evacuation and a 'non-putrefactive' intestinal flora through a high-residue vegetarian diet, bowel training, and colon hygiene removes the source of intestinal autointoxication and thereby prevents disease. refuted
- The Battle Creek Sanitarium System: History, Organization, Methods (1908)
- Colon Hygiene (1916)
- Autointoxication; or, Intestinal Toxemia (1919)
- Autointoxication and historical precursors of the microbiome-gut-brain axis (2018)
- Civilisation and the colon: constipation as the "disease of diseases" (2000)
Biologic living was the system John Harvey Kellogg administered at the Battle Creek Sanitarium and marketed as the Battle Creek Idea. It is recorded here as a regimen rather than a substance: its components were diet, bowel management, hydrotherapy, exercise, and abstinence, coordinated as a physiologic program. The price tier is premium because access was through residence at a fee-charging Sanitarium that drew a national and international clientele, not because any one component was costly; the intervention has no single proprietary ingredient, so that field is empty. The organizing rationale was intestinal autointoxication: the colon was framed as a source of self-poisoning, and the regimen as the means of clearing and re-flora-ing it to prevent disease and prolong life. That rationale is the disconfirmed element. The regimen is atypical for this archive in the same way as the Metchnikoff soured-milk case: several of its parts are harmless or even sensible, so what failed was not the diet or the exercise as such but the specific mechanistic life-extension claim attached to them. The structure, a charismatic authority packaging a gut-toxin theory into a longevity program sold to a paying clientele without controlled outcome data, is the same one that recurs in present-day microbiome and ‘detox’ longevity marketing.