In this clinical study, the results showed the significant effect of
bitter melon on fructosamine levels at 2000 mg/day of bitter melon
without effect on fasting plasma glucose level and 2 h plasma glucose
after OGTT. Given that FPG and 2 h plasma glucose level after
OGTT was performed at scheduled visits, it might not represent an
change in overall glycemic control like fructosamine or HbA1C.