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  2. John Campbell (YouTuber) - Wikipedia

    en.wikipedia.org/wiki/John_Campbell_(YouTuber)

    Creator Awards. 100,000 subscribers. 1,000,000 subscribers. Last updated: 14 February 2024. John Lorimer Campbell is an English YouTuber and retired nurse educator known for his videos about the COVID-19 pandemic. Initially, the videos received praise, but they later diverged into COVID-19 misinformation.

  3. John Cannell - Wikipedia

    en.wikipedia.org/wiki/John_Cannell

    John Jacob Cannell (born June 21, 1948) is an American doctor. An anti-smoking activist, Cannell was featured in the New York Times in the 1980s for turning away smokers from his clinic in West Virginia. Cannell founded a nonprofit group to address perceived problems with educational testing. Cannell has described several hypotheses regarding ...

  4. Talk:John Campbell (YouTuber)/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:John_Campbell_(You...

    But maybe change it to "John L. Campbell is a British YouTube personalty". Slatersteven ( talk) 10:54, 18 December 2021 (UTC) Everyone knows Wikipedia is a lost cause as far as neutrality towards those who deviate from official orthodoxies is concerned thanks for confirming that WP policy has been applied.

  5. Vitamin D - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D

    D014807. Legal status. In Wikidata. Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects. [1] [2] [3] In humans, the most important compounds in this group are vitamin D 3 ( cholecalciferol) and vitamin D 2 ( ergocalciferol ).

  6. Vitamin D deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_deficiency

    Deficiency (<50 nmol/L): Europe 40%, US 24%, Canada 37% [2] Vitamin D deficiency or hypovitaminosis D is a vitamin D level that is below normal. It most commonly occurs in people when they have inadequate exposure to sunlight, particularly sunlight with adequate ultraviolet B rays (UVB).

  7. Vitamin D toxicity - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_toxicity

    Vitamin D toxicity. Cholecalciferol (shown above) and ergocalciferol are the two major forms of Vitamin D. Specialty. Endocrinology, toxicology. Vitamin D toxicity, or hypervitaminosis D is the toxic state of an excess of vitamin D. The normal range for blood concentration in adults is 20 to 50 nanograms per milliliter (ng/mL).

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