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Vitamin O

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Scientific name: Bis-betacarboxyethyl germanium sesquioxide

Alternative names: Organic germanium

Substance/source: Diet supplement claiming to be a special supplemented oxygen in liquid form produced through electrical activation of sea water

Physiological role: Unsubstantiated claims for benefits with angina, anaemia and various forms of cancer


  1. Anonymous, 2002, “Therapeutic Vitamin O,” Chattanooga, TN: TheWolf Clinic; [Web Reference]
  2. Hall H. Analysis of claims and of an experiment to prove that oxygen is present in ‘vitamin O’. Scientific Rev Alt Med 2003; 7:29–33
  3. Williams P., 2015, “The missing vitamin alphabet,” Nutrition & Dietetics [Web Reference]
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