How we scored this
PureScore is the stored composite of ingredient safety (40%), formulation quality (30%), contaminant risk (20%) and label transparency (10%). This label matched 14 of 14 listed ingredients. Unmatched names never wear an Excellent stamp. Methodology
Zero sugar soda
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Flagged concerns
yellow 5
ADHD link; allergic reactions; hyperactivity in children; possible carcinogen.
aspartame
IARC classifies as possibly carcinogenic; neurological effects reported; not for phenylketonurics.
acesulfame potassium
Limited safety data; may affect insulin response; animal studies showed tumor increases.
natural flavor
Vague term masking hundreds of possible compounds; may include MSG, beaver anal gland secretions, and other sources.
sucralose
May alter gut microbiome; studies show possible DNA damage at high doses.
sodium benzoate
Combines with vitamin C to form benzene (carcinogen); linked to ADHD in children.
Full ingredient list
carbonated water, citric acid, natural flavor, sodium benzoate, citrus pectin, aspartame, potassium citrate, caffeine, gum arabic, acesulfame potassium, sucralose, sodium citrate, calcium disodium EDTA, yellow 5