Mint herb is rich source of fiber Vitamins A C and minerals like iron calcium and magnesium. Mint Powder improves the digestion. Direction to use: Used to flavor food as a key ingredient in chutneys and marinates used to prepare meat soups sauces salad dressing etc. Mint was originally used as a medicinal herb to treat stomach ache and chest pains and it is commonly used in the form of tea. Powdered mint leaves can also be used to fresh breath and whiten teeth; you can even add a drop or two directly to your toothpaste.