"The Antibiotic Vitamin" (SN: 11/11/06, p. 312) reminds me that in preantibiotic days, tuberculosis patients were put on a fresh-air-and-sunshine regimen. Could the vitamin D so acquired account for the cures this system sometimes produced?
Researcher John J. Cannell points to TB sanitariums as anecdotal evidence that sunlight fights infections.—J. Raloff
Does the vitamin D in milk help protect against infection?
Probably not, according to Michael Holick of Boston University, who has measured the vitamin's content in milk. Far better, he says, would be cod-liver oil, with "a whopping 1,360 [international units of vitamin D] per tablespoon."—J. Raloff
The idea of Pleistocene rewilding in North America is