A growing body of evidence points to insulin resistance in humans as one cause of sleep apnea. When researchers fed nonobese rats a high-fat diet they developed insulin resistance and sleep apnea. A second group of rats fed the same diet but given metformin (which increases insulin receptor sensitivity), prevented the elevated insulin levels and the sleep apnea.
PositiveTip: Choose a lowfat diet and keep the saturated fats to a minimum, especially from animal sources.
Source: https://www.nature.com/oby/journal/v15/n6/full/oby2007169a.html