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; kettle cooked in a peanut oil blend; kosher certified and contain: 0 g trans fat per serving; no artificial colors; no artificial flavors; no MSG; 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 Dirty's. - John Shaw, Chip Master. Order online anytime at: www.dirtys.com. Made in USA.