From: Caffeine administration does not alter salivary α-amylase activity in young male daily caffeine consumers
Caffeine treatment Ggroups
Placebo (N = 15)
200 mg (N = 15)
400 mg (N = 15)
Age (years)
22.00 ± 0.60
20.67 ± 0.58
21.07 ± 0.80
Body mass index (kg/m2)
23.43 ± 0.70
23.64 ± 0.80
23.11 ± 0.57