I don't think that contain uric acid. Nothing published in this regards. Drinking uric acid; as such or as additive to any liquid; is harmful to health.
Cola is a carbonated beverage that originally contained caffeine from the kola nut and cocaine from coca leaves, and was flavored with vanilla and other ingredients.
Most colas now use other flavoring (and caffeinated) ingredients with a similar taste and no longer contain cocaine.
Despite the name, the primary modern flavoring ingredients in a cola drink are sugar, citrus oils (from Oranges, limes, or lemon fruit peel), cinnamon, vanilla, and an acidic flavoring.
Manufacturers of cola drinks add trace ingredients to create distinctively different tastes for each brand. Trace flavorings may include nutmeg and a wide variety of ingredients, but the base flavorings that most people identify with a cola taste remain vanilla and cinnamon.
Acidity is often provided by phosphoric acid, sometimes accompanied by citric or other isolated acids.
