Three-point bending tests were performed on femurs from control (white bars) and diabetic (black bars) non-treated and alendronate treated mice. Stiffness, ultimate stress, energy and work to fracture (area under the stress strain curve) were calculated and represented as average value ± SE (n≥7–8 per group). Work to fracture was analyzed by 2-way ANOVA to determine the effects of bisphosphonate treatment, diabetes and bisphosphonate treatment × diabetes on femur strength parameters. Fisher post hoc test was used to compare differences between groups. The rest of the graphs were analyzed by one-way ANOVA followed by Fisher post hoc tests to compare differences between groups, *p<0.05, **p<0.01.