Now think about how we use them in food. Cinnamon is a sugar buffer and ginger soothes stomach upset, both used in sweet desserts. Not listed among their properties here, several of these are digestive herbs: rosemary, sage, thyme, oregano. Often used in heavy foods such as fatty meat, they help break it down and prevent indigestion.
Herbs aren't just in recipes to make the food taste better. They play an important role in health and nutrition. Those are things you can't get from artificial flavors, no matter how tempting.