Full-fat kefir is moderately keto-friendly at ~4g net carbs per 100g. Treat it as a functional food: use in measured portions to get probiotics while keeping carbs in check.
Is Kefir (Full Fat) Keto?
Yogurt

KETO VERDICTMODERATE
Full-fat kefir is moderately keto-friendly at ~4g net carbs per 100g. Treat it as a functional food: use in measured portions to get probiotics while keeping carbs in check.
- Net carbs (100g)4g
- Protein (100g)3.4g
- Fat (100g)3.4g
- Keto verdictEnjoy in moderation
NUTRITION FACTS
Per 100g (raw)
Net Carbs
4g
Total Carbs
4g
Fiber
0g
Protein
3.4g
Fat
3.4g
Calories
59
Source: USDA FoodData Central
HOW TO ENJOY IT ON KETO
- Moderate net carbs (~4g/100g) fit most keto plans with portion control
- Strained/fermented dairy reduces lactose vs. milk, improving carb profile
- Full-fat versions support satiety better than low-fat
- Probiotic food that can complement gut health on keto
- Versatile in smoothies, dressings, and marinades
- Choose unsweetened to avoid added sugars
HEALTH BENEFITS
- Provides diverse live cultures that may support digestive and immune health (brand-dependent)
- Good source of bioavailable calcium
- Contains B vitamins that aid energy metabolism
- May include small amounts of vitamin K2 in full-fat fermented dairy
- Dairy fats can aid absorption of fat-soluble vitamins (A, D, E, K)
- Tangy, fermented profile may improve meal satisfaction
PREPARATION SUGGESTIONS
FUNCTIONAL DRINK
Sip 100–150 ml plain kefir daily for probiotics; log the carbs.
SMOOTHIE BASE
Blend with spinach, mct-oil, a few raspberry, and ice for a tart, creamy shake.
SALAD DRESSING
Whisk with olive-oil, vinegar-apple-cider, garlic, and dill for a light ranch-style dressing.
MARINADE
Combine with spices and lemon for tenderizing chicken-thighs or fish.
BREAKFAST TOPPER
Pour over a small bowl of chia-seeds and flax-seed-meal; add a few nuts for crunch.
ENZYME SUPPORT
Have a small glass after meals if dairy is well tolerated.