Summary
This review by Italian and British researchers aimed to investigate the effect of magnesium on glucose (sugar) and insulin parameters in people with diabetes or at high risk of this condition. 18 trials were analyzed, which showed that magnesium treatment reduced fasting glucose levels in diabetes patients. Furthermore, magnesium supplementation significantly improved glucose levels in people at high risk of diabetes. More details can be found in the review.
References
Veronese et al.