For all the Dorito flavors that don’t list any dairy products amongst their ingredients, it states on the site: ‘made in a factory that also handles: milk’. For strict vegans and individuals who are lactose intolerant, this statement could be enough to put you off. However, for others, the mere possibility of cross-contamination with milk products that are handled in the same factory may not be enough to put you off flavors that don’t explicitly contain dairy products.
While Doritos do everything in their power to ensure that this cross-contamination doesn’t happen, it cannot be guaranteed. Therefore, as mentioned above, some will understandably discard Doritos as a snack they can indulge in, due to this risk.