Steviol inhibits lactate secretion and glucose uptake in pancreatic cancer cells. (A) Effect of steviol on lactate secretion by pancreatic cancer cells as determined by glycolysis cell-based assay kit (Cayman Chemical, Ann Arbor, MI, USA). Bar graphs represent lactate secretion by HPAF-II (Ai) and AsPC1 (Aii) cells 24 h post-treatment of steviol. (B) Effect of steviol on glucose uptake by pancreatic cells as determined by glucose colorimetric assay kit after 48 h of steviol treatment (Cayman Chemicals, Ann Arbor, MI, USA). Bar graphs represent the unused glucose in HPAF-II (Bi) and AsPC1 (Bii) cells. n = 2; * p < 0.05.