Kefir

Kefir

the fermented milk drink from the Caucasus

Eggs & Dairy

Lactobacillus kefiranofaciens (primary)

Origin: Caucasus Mountains

#probiotics#fermented#gut-health#dairy#caucasus

✔ High protein✔ Low sugar✔ Low sodium

What is this ingredient?

Kefir is a fermented milk drink from the Caucasus. It's made with 'kefir grains' - a unique combination of bacteria and yeasts found nowhere else. These grains have been passed down from generation to generation for thousands of years.

Expert Tip: 'Kefir grains' are not grain, but symbiotic colonies of bacteria and yeasts (SCOBY). If you want to make kefir yourself, you can buy these grains online and reuse them indefinitely. Homemade kefir is much stronger than store-bought versions.

How does it taste?

Fresh, tangy and slightly effervescent with a thin, drinkable texture.

Pairs well with:

Pairs well with berrieshoneybananaoats and vanilla.

Varieties

Homemade (Traditional)

Made with real kefir grains, contains up to 61 bacterial strains plus yeasts. Much stronger than store-bought, more sour and complex in flavor

Commercial (Store-bought)

Standardized product with fewer strains (10-12) but consistent and easily available. Good starting point for beginners

Water Kefir (Dairy-Free)

Fermented with sugar water instead of milk. Different grains, less protein but still probiotic. Suitable for lactose intolerance

Did you know...?
  • The name 'kefir' comes from the Turkish word 'keyif' meaning 'good feeling'.
  • Kefir grains have been passed down for centuries; they cannot be artificially replicated.

Nutritional Value & Energy

Per 100ml

Kefir provides energy thanks to natural nutrients .

67 kcal (280 kJ)

3.8gProtein
4.5gCarbs
3.5gFat
4.5gSugar
40mgSodium

Per 100g

Minerals

0.0mg Iron 120mg Calcium 0.4mg Zinc 12mg Magnesium 164mg Potassium 43mcg Iodine 3.6mcg Selenium

Vitamins

31mcg Vitamin A 0.05mg Vitamin B6 0.4mcg Vitamin B12 1mg Vitamin C 0.3mcg Vitamin D 0.1mg Vitamin E 1mcg Vitamin K 13mcg Folate

Omega-3 fatty acids

5mg DHA 0mg EPA
More nutrients

B-Vitamins

0.05mg Thiamin (B1) 0.17mg Riboflavin (B2) 0.1mg Niacin (B3) 0.36mg Pantothenic Acid (B5) 1.6mcg Biotin (B7)

Trace Minerals

0.01mg Copper 96mg Phosphorus

What's in a serving?

1 serving

Calcium good 15%

Kefir naturally contains calcium (120 mg per 100 g).

Zinc a small amount 4%
Magnesium a small amount 3%
Potassium a little 8%
Iodine good 29%

Kefir naturally contains iodine (43 mcg per 100 g).

Selenium a little 7%
Vitamin A a small amount 4%
Vitamin B12 good 16%

Kefir naturally contains vitamin b12 (0.4 mcg per 100 g).

Vitamin D a little 6%
Folate a little 7%

% of daily reference intake (DRI)

EU-approved nutrition claims
✔ EFSA claims via nutrients

This ingredient contains nutrients for which EFSA-authorized health claims exist (at nutrient level, not ingredient-specific).

Approved health claims (EU)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to the normal function of the immune system

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to the reduction of tiredness and fatigue

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to the normal functioning of the nervous system

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Calcium EU 432/2012

Calcium is needed for the maintenance of normal bones

Contains 120mg/100g (threshold: ≥120mg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to normal energy-yielding metabolism

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to normal homocysteine metabolism

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to normal psychological function

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 contributes to normal red blood cell formation

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Vitamin_b12 EU 432/2012

Vitamin B12 has a role in the process of cell division

Contains 0.4mcg/100g (threshold: ≥0.375mcg/100g)

Calcium EU 432/2012

Calcium is needed for the maintenance of normal teeth

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium contributes to normal blood clotting

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium contributes to normal energy-yielding metabolism

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium contributes to normal muscle function

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium contributes to normal neurotransmission

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium contributes to the normal function of digestive enzymes

Contains 120mg/100g (threshold: ≥120mg/100g)

Calcium EU 432/2012

Calcium has a role in the process of cell division and specialisation

Contains 120mg/100g (threshold: ≥120mg/100g)

Iodine EU 432/2012

Iodine contributes to normal cognitive function

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

Iodine EU 432/2012

Iodine contributes to normal energy-yielding metabolism

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

Iodine EU 432/2012

Iodine contributes to normal functioning of the nervous system

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

Iodine EU 432/2012

Iodine contributes to the maintenance of normal skin

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

Iodine EU 432/2012

Iodine contributes to the normal production of thyroid hormones and normal thyroid function

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

Iodine EU 432/2012

Iodine contributes to the normal growth of children

Contains 43mcg/100g (threshold: ≥22.5mcg/100g)

What's being researched?
Digestive

Kefir and gut microbiome

The unique symbiotic culture (kefir grains) and the diversity of probiotic strains in kefir are extensively studied. Studies show associations with improved lactose digestion and favorable microbiome shifts.

Supported by: [3] Hertzler (2003) , [1] Rosa (2017) , [2] Marco (2017)

Immune

Kefir and immune modulation

The immunomodulatory properties of kefir are being studied in animal and human studies. Preliminary evidence suggests effects on cytokine production and gut-associated lymphoid tissue.

Supported by: [1] Rosa (2017) , [2] Marco (2017)

Good Combinations (Synergy)

Combine kefir smartly to enhance the effect:

Synergy
Kefir Kefir Barley Barley

Talbina — supports nervous system and gut flora

Technical: Barley contains beta-glucans (3-8g per 100g) that act as prebiotics — they selectively feed Lactobacillus and Bifidobacterium in the gut. Kefir delivers these live probiotic strains directly. Additionally, barley contains tryptophan that is converted to serotonin and melatonin via the gut-brain axis (vagus nerve). This combination is known as Talbina, a Prophetic recipe.

What does this mean for you? Cook barley porridge and stir in kefir or yogurt after cooking. This food is traditionally recommended for grief and stress. The prebiotics literally feed the probiotics — an ideal symbiosis for your gut flora and mood.

Synergy
Kefir Kefir Granola Granola

Prebiotics + probiotics for optimal gut flora

Technical: Granola contains beta-glucans from oats — soluble fibers acting as prebiotics that selectively feed beneficial gut bacteria. Yogurt and kefir provide live probiotics (Lactobacillus, Bifidobacterium). This synbiotic effect — prebiotics feeding probiotics — maximizes colonization and survival of good bacteria in the gut.

What does this mean for you? Eat granola with yogurt or kefir for breakfast. The oat fibers from granola feed the good bacteria from yogurt — together they strengthen your gut flora.

Synergy
Kefir Kefir Banana Banana

Smoothie base: probiotics + prebiotic FOS + potassium

Technical: Kefir contains 30+ bacterial strains and yeasts (more diverse than yogurt). Banana contains fructo-oligosaccharides (FOS, prebiotics) that feed kefir bacteria, plus 358mg potassium per 100g. The combination forms a 'synbiotic' — pre- and probiotics together.

What does this mean for you? Blend kefir with banana for a powerful smoothie. Add chia seeds for extra fiber and omega-3.

Synergy
Kefir Kefir Blueberries Blueberries

Polyphenols support probiotics

Technical: Kefir contains 30-50 different bacterial and yeast strains — much more diverse than yogurt. Blueberries' polyphenols (anthocyanins) are prebiotic: they are fermented by gut bacteria into bioactive metabolites that promote growth of beneficial strains. This further strengthens kefir's already diverse microbiome.

What does this mean for you? Mix blueberries into your kefir as breakfast or smoothie. The berries feed the rich bacterial culture in kefir — a synbiotic combination for your gut flora.

Synergy
Kefir Kefir Oatmeal Oatmeal

Prebiotics + Probiotics = Synbiotics

Technical: Oatmeal contains beta-glucans — soluble fibers acting as prebiotics. Kefir provides 30-50 probiotic strains. Together they form a synbiotic: beta-glucans selectively feed kefir's probiotics, strongly increasing their survival and colonization in the gut.

What does this mean for you? Pour kefir over your oatmeal instead of milk. The oat fiber feeds the probiotics from kefir — a synbiotic combination for your gut flora.

Complementary
Kefir Kefir Sauerkraut Sauerkraut

Double probiotic diversity

Technical: Kefir contains 30-50 probiotic strains (bacteria and yeasts), sauerkraut contains different strains (primarily Lactobacillus plantarum and L. brevis). Together they provide maximum microbiome diversity. Diverse bacterial populations produce a broader spectrum of short-chain fatty acids.

What does this mean for you? Eat kefir and sauerkraut on the same day (not necessarily in one bite). Two different probiotic sources give your gut the most diversity — and diversity is the most important characteristic of varied gut flora.

Synergy
Kefir Kefir Saffron Saffron

Golden milk for mood and sleep

Technical: Saffron contains safranal (sedative via GABAergic action) and crocin (carotenoid antioxidant). Safranal increases serotonin through reuptake inhibition. Milk contains tryptophan (serotonin precursor) and fat that makes fat-soluble crocin more absorbable. Together: sleep promotion via serotonin + GABA + fat absorption.

What does this mean for you? Warm milk with a pinch of saffron before bed. The saffron aids sleep through two routes (serotonin and GABA), the milk fat ensures optimal absorption.

Recipes with Kefir

Discover delicious recipes featuring kefir:

Velvety Blueberry Kefir Smoothie 5 min Fresh, creamy and softly green 255 kcal 9g protein 2 synergies Kefir Smoothie with Berries and Honey 5 min A creamy fermented smoothie with blueberries and raspberries 179 kcal 7g protein 1 synergies
In the Kitchen

Storage

Location:Refrigerator

Shelf life:2-3 weken (koelkast), zelfgemaakt korter

Kefir grains can be reused indefinitely if well maintained. Strain fresh kefir daily for new batch.

Preparation

Don't heat - this kills the probiotics. Combine with oatmeal (prebiotics) for synbiotic effect. Start with 50ml and build up.

Conversions

240g= 1 cup

Substitutes

karnemelk 1:1 Less probiotics

Smart preparation

1Shake kefir well before use, it separates quickly.

2Do not heat kefir above 40°C.

Why?

Higher temperatures kill the live cultures.

3Use kefir as a substitute for buttermilk in pancakes.

Caution / Warnings

Kefir is very safe, but there are scientific considerations:

Severe Immunodeficiency Moderate

With severely weakened immune system, live bacteria can pose risks

Advice:

Consult your doctor if you use immunosuppressants or have a serious immune disorder

Startup Phase Mild

When starting, kefir can temporarily cause gas and discomfort

Advice:

Start with small amounts (50ml) and build up slowly. Your intestines need to get used to the new residents

Traditional use

Other

Kefir in the Caucasus

Kefir originated in the Caucasus, where shepherds have prepared it in leather bags for centuries. It was considered a gift from the gods.

Islamic tradition

Kefir in the Islamic World

Fermented milk drinks have a long tradition in the Islamic world, valued for their cooling and nourishing properties.

Summary

Kefir is yogurt on steroids. Where yogurt contains 2-7 bacterial strains, kefir is packed with up to 61 different strains plus yeasts. It's the easiest way to give your gut flora a complete makeover. Drink it for breakfast with oatmeal (prebiotics), or make your own kefir with grains for maximum strength. Start slowly - your intestines need to get used to the new residents.

Scientific Sources [1] Rosa, D. D., et al. (2017) Kefir: A powerful probiotics with anticancer properties Nutrition and Cancer Kefir: A powerful probiotics with anticancer properties Review PMID: 28956261 [2] Marco, M. L., et al. (2017) Health benefits of fermented foods: microbiota and beyond Current Opinion in Biotechnology Nutritional properties of fermented foods: microbiota and beyond Review PMID: 27998788 [3] Hertzler, S. R., & Clancy, S. M. (2003) Kefir improves lactose digestion and tolerance in adults with lactose maldigestion Journal of the American Dietetic Association Kefir improves lactose digestion and tolerance in adults with lactose maldigestion Review PMID: 12728216

This information is intended for educational purposes and does not replace medical advice. Consult a doctor or dietitian for personal advice.