What in Diet Mountain Dew could cause gout?

here are the contents of Diet Mountain Dew, I cant imagine any of these giving you a problem with gout used in moderation.

Carbonated Water

Concentrated Orange Juice

Citric acid

Natural flavor

Citrus pectin

Potassium benzoate (preserves freshness)

Aspartame

Potassium citrate

Caffeine (36 mg/8 fl.oz.) -- equates to 54 mg/12 fl.oz.

Sodium citrate

Acesulfame potassium

Sucralose

Gum Arabic

Sodium benzoate (preserves freshness)

Calcium disodium EDTA

Brominated vegetable oil

Yellow 5