Yep, potatoes come in a striking blue variety that also come packed with nutrition too! You may find these rare varieties a bit harder to come by, but any decent farm store or local green grocer will stock them. The reason for their vibrant blue colour is the potent antioxidant anthocyanin, this has particular neuroprotective properties that make it winner over your regular white potato (although it still has its place). The blue variety supports short- term memory and reduces nervous inflammation. On top of this, their skins contain iodine which is key to thyroid regulation.
This variety of potato may help to stave off long term chronic conditions such as heart disease and neurodegenerative conditions, as well as increasing mood AND making your plate look a little bit more interesting.