Taking soy supplements may not boost your defense against type 2 diabetes, a new study shows.
In previously published test-tube and animal-based research, scientists have demonstrated that certain compounds found in soy may help regulate blood sugar and insulin (the hormone responsible for permitting cells to use blood sugar for energy). Known as isoflavones, these estrogen-like compounds are thought to help keep blood sugar in check.
The new study involved 180 postmenopausal women, all of whom either had pre-diabetes (a condition marked by elevated blood sugar levels) or early-stage diabetes. After six months of supplementing their daily diet with soy isoflavones, study members showed no significant improvement in blood sugar control or insulin levels.
Other studies suggest that soy isoflavones may slightly lower cholesterol levels, as well as cool hot flashes among women going through menopause.
