Is BUFFALO POTATO SALAD vegan?

cooked red potatoes (potato, citric acid, sodium benzoate, sodium acid pyrophosphate, salt, potassium sorbate), mayonnaise (soybean oil, corn syrup, water, egg yolks, distilled vinegar, contains less than 2% of: salt, spice, citric acid, calcium disodium edta added to protect flavor), celery, sour cream (cultured milk, cream, nonfat milk powder, enzymes, gelatin), carrots, cayenne pepper sauce (aged cayenne red peppers, vinegar, water, salt, natural flavor and garlic powder), red onion, cream cheese (pasteurized cultured milk and cream, salt, stabilizers [xanthan gum, carob bean gum, locust gum, and guar gum]), water, buttermilk (cultured skim milk, nonfat dry milk, cream, salt, modified corn starch, mono and diglycerides, carrageenan, locust bean gum, natural flavor, vitamin a palmitate and vitamin d3), evaporated salt, ranch salad dressing mix (salt, monosodium glutamate, maltodextrin, garlic, onion, parsley, spice, carrageenan, with no more than 2% calcium stearate [anti-caking]), sodium benzoate and potassium sorbate added to protect flavor, onion powder, paprika, dehydrated garlic, dehydrated chives, spice.

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