All natural. We kettle cook in a premium peanut oil blend for a crunchier, tastier potato chip! Dirty Potato Chips Are: all natural; gluten free; cholesterol free; kettle cooked in a peanut oil blend; Kosher certified. And Contain: 0 g trans fat per serving; no artificial colors; no artificial flavors; no preservatives; no artificial sweeteners. Dirty potato chips are kettle cooked one batch at a time and use premium, all natural ingredients for a crunchier tastier chip. We thank you for purchasing Dirtys. - The chip master. www.dirtys.com. Made in USA.