PYY (Peptide YY)
PYY or Peptide YY is also termed as peptide tyrosine tyrosine which is released from the ileum and colon cells. This short peptide is composed of 36 amino acids and decreases appetite. The consumption of fibers such as those found in leafy vegetables, fruits, and whole grains has been known to increase PYY levels. For instance, you feel full after eating an apple since PYY can increase water and electrolyte absorption in the colon.