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Description
its a fat-soluble hormone

The direct action of GIP on its receptor, which is expressed by these cells, is what causes GIP stimulation to increase glucagon secretion by alpha cells in contrast to GLP- 1 [72,73,74]

[DOI] [PubMed] [Google Scholar] [36].Slansky JE, Nakayama M

A diet that includes meat, fish and dairy products usually provides enough vitamin B12, but people who do not regularly eat these foods can become deficient
