It is rich in fiber, antioxidants, phytonutrients, zeaxanthin, resveratrol, anthocyanins, lutein and flavonoids. It is a unique formula because black mulberries are rich in anthocyanins, which gives them their dark color, that the mixed diet has an almost purple, burgundy color. It also has a very pleasant and unique aroma. It's a very smooth mix and is sure to be a hit with geckos.