Figure 1. Glucose and insulin measurements for both the hypoglycaemic and the hyperglycaemic clamps.

No statistical difference was found between the placebo and vitamin treatments and the averages are given for both treatments combined. Statistical testing (see Methods) within the hypoglycaemic and hyperglycaemic clamps: *significantly different from Pre-Clamp value; +significantly different from Post-Clamp value; #significantly different from Start-Clamp value.