From: Acute effects of decaffeinated coffee and the major coffee components chlorogenic acid and trigonelline on incretin hormones
TOTAL GLP-1
INTACT GLP-1*
GIP
(pmol/L × 120 min)
Placebo
1720 ± 180
83 ± 33
6984 ± 566**
Chlorogenic acid
1549 ± 178
140 ± 47
6656 ± 620
Decaffeinated coffee
1809 ± 152
66 ± 21
6725 ± 516
Trigonelline
1730 ± 160
94 ± 39
7512 ± 619