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Ingredient · Sweetener

CAFFEINE. PHENYLKETONURICS: CONTAINS PHENYLALANINE NO CALORIES

Mixed · 4/10, higher is cleaner

How we reached this

Caffeine + PKU warning indicates diet-soda formulation with aspartame (phenylalanine is the PKU concern). Caffeine ADI tolerated at moderate intake. Aspartame WHO IARC Group 2B (possibly carcinogenic) since 2023.

Sources · 1

Also listed as

caffeine phenylketonurics contains phenylalanine no calories

Products containing this · 1

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.