Atkins Endulge Caramel Nut Chew Bar

Is this Kosher? If so, Kosher for Passover? Thank you very much.

Ingredients: Chocolate coating (maltitol, chocolate liquor, cocoa butter, sodium caseinate, milk fat, soy lecithin, sucralose, natural and artificial flavor, salt), peanuts, polydextrose maltitol, inulin, whey protein isolate, palm kernel oil, butter (pasteurized cream, salt), peanut butter (peanuts, monoglycerides, salt, mixed tocopherols), nonfat dry milk, soy lecithin, sucralose, acesulfame potassium, natural and artificial flavor.

Kosher for Pesach for all