Fermented milk

Fermented milk has been studied in 6 papers since 2021: 2 observational studies in people, 1 in animals, 3 reviews; 1 in the past year. The newest paper, Feb 26, 2026: “Fermented foods consumption, all-cause, and cause-specific mortality: a meta-analysis of prospective cohort studies”.

Exposure

6 papers study it8 findingsUpdated

See all 6 papers on fermented milk

At a glance

The findings reach people, from one lab or study. 3 independent labs in 2 countries.

“the group consuming fermented milk products ≥3 days/week showed significantly faster walking speeds than the <3 days/week group.”
Effects of fermented milk intake and physical activity on the suppression of age-related decline in physical fitness among the elderlyBeneficial microbes2024doi:10.1163/18762891-bja00025

None of its findings points the other way.

Mice and humans: a single group. Cells and worms or flies: nothing yet.
  • 3 independent labs in 2 countries
  • Funders: Japan Society for the Promotion of Science and 3 more
  • 3 of 8 findings with company ties
  • Humans2
  • Animals1

What did studies of fermented milk find?

5

Studies of fermented milk measured 5 outcomes; the most studied are walking speed decline (1 study), walking speed (1) and TNF-alpha (1).

Walking speed decline

downin humans1

1 study
  1. Fermented milk is linked with lower walking speed decline in humans.

    “5-year prospective study confirmed a clear relationship between the frequency of consumption of fermented milk products and the suppression of preferred walking speed decline.”

    Humans5 yearsn = 240

    Effects of fermented milk intake and physical activity on the suppression of age-related decline in physical fitness among the elderly

    Beneficial microbes

Walking speed

upin humans1

1 study
  1. Fermented milk is linked with better walking speed in humans after adjustment for potential confounders.

    “the group consuming fermented milk products ≥3 days/week showed significantly faster walking speeds than the <3 days/week group.”

    Humansafter adjustment for potential confounders≥3 days/week vs <3 days/week

    Effects of fermented milk intake and physical activity on the suppression of age-related decline in physical fitness among the elderly

    Beneficial microbes

TNF-alpha

downin mice1

1 study
  1. Fermented milk decreases TNF-alpha in mice.

    “Levels of tumor necrosis factor-α, an inhibitor of protein anabolism, were lower in the fermented milk group.”

    AnimalsLactococcus cremoris subsp. cremoris FC-fermented300 μL/day, every alternate day8 weeksmales

    Lactococcus cremoris subsp. cremoris FC-fermented milk activates protein synthesis and increases skeletal muscle mass in middle-aged mice

    Biochemical and biophysical research communications

More on TNF-alpha

mTOR signaling

upin mice1

1 study
  1. Fermented milk activates mTOR signaling in mice.

    “phosphorylation levels of anabolic signaling factors (mTOR and p70S6K) were higher after fermented milk supplementation”

    AnimalsLactococcus cremoris subsp. cremoris FC-fermented300 μL/day, every alternate day8 weeksmales

    Lactococcus cremoris subsp. cremoris FC-fermented milk activates protein synthesis and increases skeletal muscle mass in middle-aged mice

    Biochemical and biophysical research communications

More on mTOR signaling

Soleus muscle weight

upin mice1

1 study
  1. Fermented milk increases soleus muscle weight in mice.

    “Soleus muscle weight was higher in the fermented milk group than in the control group.”

    AnimalsLactococcus cremoris subsp. cremoris FC-fermentedsoleus muscle300 μL/day, every alternate day8 weeksmales

    Lactococcus cremoris subsp. cremoris FC-fermented milk activates protein synthesis and increases skeletal muscle mass in middle-aged mice

    Biochemical and biophysical research communications

What is fermented milk linked with?

3

Studies link fermented milk with 3 measures, most often cancer mortality (1 study), cardiovascular disease mortality (1) and mortality (1).

Cancer mortality

downin humans1

1 study
  1. Fermented milk lowers the risk of cancer mortality in humans.

    “Fermented milk consumption also showed a protective association with cancer mortality.”

    Review

    Fermented foods consumption, all-cause, and cause-specific mortality: a meta-analysis of prospective cohort studies

    Frontiers in nutrition

More on Cancer mortality

Cardiovascular disease mortality

downin humans1

1 study
  1. Fermented milk lowers the risk of cardiovascular disease mortality in humans.

    “Higher consumption of chocolate, cheese, and fermented milks (including yogurt) was associated with lower all-cause and CVD mortality.”

    Review

    Fermented foods consumption, all-cause, and cause-specific mortality: a meta-analysis of prospective cohort studies

    Frontiers in nutrition

More on Cardiovascular disease mortality

Mortality

downin humans1

1 study
  1. Fermented milk lowers the risk of mortality in humans.

    “Higher consumption of chocolate, cheese, and fermented milks (including yogurt) was associated with lower all-cause and CVD mortality.”

    Review

    Fermented foods consumption, all-cause, and cause-specific mortality: a meta-analysis of prospective cohort studies

    Frontiers in nutrition

Latest

Dec 2025: 0Jan 2026: 0Feb 2026: 1Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Nov 2026: 01 paper in 12 months