Peptide YY (PYY) is a gut hormone which is primarily released from endocrine cells of the distal digestive tract in proportion to both the calorie content of a meal and its energy source composition. It plays an important role in regulating gastrointestinal secretion and motility. Reference can be found at http://www.c…

Then I think basic regulations about healthy drinks should be payed more attention. -Lepirudin