As a confectionery expert with extensive knowledge of various candy compositions, I can provide you with accurate information regarding the ingredients of Mars bars.

Mars bars, which are popular chocolate bars originating from the United Kingdom and made by Mars, Incorporated, traditionally do not contain peanuts. The classic Mars bar consists of nougat and caramel covered in milk chocolate. However, it's important to note that different versions of the bar may exist in various countries, and some may have variations in their ingredients. For instance, in the United States, a similar bar called a Milky Way has a nougat center with a slight hint of peanuts, but this is not the same as a Mars bar.

To ensure you have the most accurate information, it's always best to check the packaging or the manufacturer's website for the specific ingredients of the product you are interested in.

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A MARS? Bar contains Milk Chocolate 40%, Nougat 33% and Caramel 27%. Ingredients: Sugar, Glucose Syrup (Sources include Wheat), Milk Solids, Vegetable Fat, Cocoa Butter, Cocoa Mass, Barley Malt Extract, Cocoa Powder, Emulsifier (Soy Lecithin), Salt , Egg White, Natural Flavour (Vanilla Extract).read more >>