Diet cola leads 4–3 · 7 categories decided · 3 ties
Both foods compared at 100 kcal.
The verdict
Diet cola comes out ahead, winning 4 of 7 nutrient match-ups.
Pick Black tea, brewed for less sodium, more potassium and more magnesium.
Pick Diet cola for more protein, less saturated fat, more calcium and more iron.
Evenly matched on fiber, sugar and vitamin C.
Head-to-head
- Energy100 kcal100 kcal
- Proteinmore is better0 g5.5 gWIN
- Carbohydrate30 g14.5 g
- Fibermore is better0 g0 g
- Total sugarsless is better0 g0 g
- Total fat0 g1.5 g
- Saturated fatless is better0.2 g0 gWIN
- Sodiumless is betterWIN300 mg400 mg
- Potassiummore is betterWIN3700 mg400 mg
- Calciummore is better0 mg150 mgWIN
- Ironmore is better2 mg5.5 mgWIN
- Magnesiummore is betterWIN300 mg50 mg
- Vitamin Cmore is better0 mg0 mg
- Vitamin Dmore is better——
Winners are decided by deterministic per-metric rules on the stated basis; ties and missing data don’t score (missing ≠ zero). Educational information only — not medical advice.

