Lactobacillus Kefir Probiotic

In several of my deep dives, Lactobacillus Kefiri is mentioned as being effective against selective bacteria genus over growths. A reader in Spain found that it is available!

It is not just available, but the strain is given:  Lactobacillus Kefiri LKF01 (DSM 32079) LKEF  Store URI (In EU)



For this specific strain:

“L. kefiri was recovered in the feces of all volunteers after one month of probiotic administration, while it was detected only in three subjects belonging to the pre-prandial group and in two subjects belonging to the post-prandial group one month after the end of probiotic consumption. After one month of probiotic oral intake we observed a reduction of Bilophila, Butyricicomonas, Flavonifractor, Oscillibacter and Prevotella. Interestingly, after the end of probiotic administration Bacteroides, Barnesiella, Butyricicomonas, Clostridium, Haemophilus, Oscillibacter, Salmonella, Streptococcus, Subdoligranolum, and Veillonella were significantly reduced if compared to baseline samples.

L. kefiri LKF01 showed a strong ability to modulate the gut microbiota composition, leading to a significant reduction of several bacterial genera directly involved in the onset of pro-inflammatory response and gastrointestinal diseases.” [2017] [Full Text]


For the species,

Bottom Line

This appears to not only reduce many high bacteria genus that CFS patients but also reduces inflammation and appear to take up residency.

If you have any of the high bacteria genus cited above, it is definitely a strong recommendation to discuss with your medical professional.


Q: Could we potentially benefit from eating regular kefir?

A: Alas not — Kefir is a mixture of many bacteria. They isolate the most effective strain from dozens of different kefirs.  A listing of those that could be in Kefir:
  • LACTOBACILLILactobacillus acidophilus
    Lb. brevis [Possibly now Lb. kefiri]
    Lb. casei subsp. casei
    Lb. casei subsp. rhamnosus
    Lb. paracasei subsp. paracasei
    Lb. fermentum
    Lb. cellobiosus
    Lb. delbrueckii subsp. bulgaricus
    Lb. delbrueckii subsp. lactis
    Lb. fructivorans
    Lb. helveticus subsp. lactis
    Lb. hilgardii
    Lb. helveticus
    Lb. kefiri
    Lb. kefiranofaciens subsp. kefirgranum
    Lb. kefiranofaciens subsp. kefiranofaciens
    Lb. parakefiri
    Lb. plantarum


    Streptococcus thermophilus
    St. paracitrovorus ^
    Lactococcus lactis subsp. lactis
    Lc. lactis subsp. lactis biovar. diacetylactis
    Lc. lactis subsp. cremoris
    Enterococcus durans
    Leuconostoc mesenteroides subsp. cremoris
    Leuc. mesenteroides subsp. mesenteroides
    Leuc. dextranicum ^


    Dekkera anomala t/ Brettanomyces anomalus a
    Kluyveromyces marxianus t/ Candida kefyr a#
    Pichia fermentans t/ C. firmetaria a
    Yarrowia lipolytica t/ C. lipolytica a
    Debaryomyces hansenii t/ C. famata a#
    Deb. [Schwanniomyces] occidentalis
    Issatchenkia orientalis t/ C. krusei a
    Galactomyces geotrichum t/ Geotrichum candidum a
    C. friedrichii
    C. rancens
    C. tenuis
    C. humilis
    C. inconspicua
    C. maris
    Cryptococcus humicolus
    Kluyveromyces lactis var. lactis #
    Kluyv. bulgaricus
    Kluyv. lodderae
    Saccharomyces cerevisiae #
    Sacc. subsp. torulopsis holmii
    Sacc. pastorianus
    Sacc. humaticus
    Sacc. unisporus
    Sacc. exiguus
    Sacc. turicensis sp. nov
    Torulaspora delbrueckii t
    * Zygosaccharomyces rouxii


Because of so many different bacteria in Kefir there are a number of risks for conflict with medications (From WebMD)


This is an education post to facilitate discussing this approach with your medical professionals. It is not medical advice for the treatment of CFS. Always consult with your medical professional before doing any  changes of diet, supplements or activity. Some items cites may interfere with prescription medicines.