Evidence-based nutrition, in plain English — every entry sourced from clinical research.

FOOD PROFILE

Kefir

55kcalCalories
3.3gProtein
4.6gCarbs
3gFat
0gFiber

A fermented milk drink with a far more diverse probiotic profile than yogurt. A landmark Stanford trial found fermented foods like kefir increased microbiome diversity and lowered inflammation markers.

What the research says

Cell · 2021 · Randomized controlled trial

Fermented-Food Diet Increases Microbiome Diversity and Lowers Inflammation

Ten weeks of a diet high in fermented foods (yogurt, kefir, kimchi) increased gut microbiome diversity and decreased 19 inflammatory markers.

Read the study →
nutritious foods
Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 55
Total Fat 3 g
Saturated Fat 1.8 g
Sodium 40 mg
Potassium 164 mg
Total Carbohydrate 4.6 g
Dietary Fiber 0 g
Total Sugars 4.6 g
Protein 3.3 g
Probiotics (diverse strains), calcium, B12
Glycemic index: 25
Source: USDA FoodData Central (approx.)