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The discovery dates of the vitamins and their sources Year of discovery Vitamin Food source 1913: Vitamin A (Retinol) Cod liver oil: 1910: Vitamin B 1 (Thiamine) Rice bran: 1920: Vitamin C (Ascorbic acid) Citrus, most fresh foods 1920: Vitamin D (Calciferol) Cod liver oil 1920: Vitamin B 2 (Riboflavin) Meat, dairy products, eggs: 1922: Vitamin ...
As of June 2012, Discovery Channel was the third most widely distributed subscription channel in the United States, behind now-sibling channel TBS and the Weather Channel; [6] it is available in 409 million households worldwide, through its U.S. flagship channel and its various owned or licensed television channels internationally.
Elmer Verner McCollum (March 3, 1879 – November 15, 1967) was an American biochemist known for his work on the influence of diet on health. [2] [3] McCollum is also remembered for starting the first rat colony in the United States to be used for nutrition research.
How It's Made is a documentary television series that premiered on January 6, 2001, on the Discovery Channel in Canada and Science in the United States. The program is produced in the Canadian province of Quebec by Productions MAJ, Inc. and Productions MAJ 2. In the United Kingdom, it is broadcast on Discovery Channel, Quest, and DMAX. [1]
Expedition Bigfoot (2023–present, moved from Travel Channel) Expedition Files (2024–present) Expedition Unknown; Expedition X (2020–present) Game Changers (2024–present) Ghost Adventures; Ghost Adventures: House Calls (2024–present, moved from Discovery+) Ghost Adventures: Screaming Room (2024-present, moved from Travel Channel) Gold Rush
A 1940s lithograph produced by the UK Ministry of Food illustrating the Vitamin C content of various foods. The early years of the 20th century were summarized by Kenneth John Carpenter in his Short History of Nutritional Science as "the vitamin era". [3] The first vitamin was isolated and chemically defined in 1926 .
The channel was launched on December 31, 1994 by Labatt Communications as Discovery Channel, a U.S. version of the American cable network of the same name; as with its namesake, it primarily aired factual programming relating to topics such as science, technology, and nature, with a mix of original Canadian productions (including a daily news ...
Szent-Györgyi would later win a Nobel Prize for his part in the discovery, and controversy remains over whether both men deserve equal credit. King later established the important functional role of vitamin B, and throughout his 40-year research career made many significant contributions in the areas of fats, enzymes and vitamins. King ...