Kefir leads 6–2 · 8 categories decided · 2 ties
Each value is per 100 g edible portion.
The verdict
Kefir comes out ahead, winning 6 of 8 nutrient match-ups.
Pick Buttermilk for more iron and more vitamin C.
Pick Kefir for more protein, less sugar, less sodium, more potassium, more calcium and more magnesium.
Evenly matched on fiber and saturated fat.
Head-to-head
- Energy40 kcal43 kcal
- Proteinmore is better3.31 g3.79 gWIN
- Carbohydrate4.79 g4.77 g
- Fibermore is better0 g0 g
- Total sugarsless is better5.36 g4.61 gWIN
- Total fat1.07 g1.02 g
- Saturated fatless is better0.66 g0.66 g
- Sodiumless is better148 mg40 mgWIN
- Potassiummore is better151 mg164 mgWIN
- Calciummore is better116 mg130 mgWIN
- Ironmore is betterWIN0.05 mg0.04 mg
- Magnesiummore is better11 mg12 mgWIN
- Vitamin Cmore is betterWIN1 mg0.2 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.

