Metabarol by Equithrive helps reduce insulin resistance and supports optimum metabolic function in horses. Metaborol contains Resverasyn, a micro-encapsulated resveratrol product that has been shown to reduce insulin levels in response to oral glucose challenge. Metabarol improves insulin sensitivity and optimizes metabolic efficiency. Feed 30 grams daily. For best results, divide dosage between AM and PM feedings. Powder.