Trial reportEuropean journal of clinical nutrition2009
The effect of Lactobacillus helveticus fermented milk on sleep and health perception in elderly subjects.
Trial report in European journal of clinical nutrition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
40 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Pooled it
- The Effects of Milk and Dairy Products on Sleep: A Systematic Review.International journal of environmental research and public health · 2020Pooled it
- Effects of probiotics and paraprobiotics on subjective and objective sleep metrics: a systematic review and meta-analysis.European journal of clinical nutrition · 2020Pooled it
- Higher daytime intake of fruits and vegetables predicts less disrupted nighttime sleep in younger adults.Sleep health · 2025Trial
- Bifidobacterium longum 1714 improves sleep quality and aspects of well-being in healthy adults: a randomized, double-blind, placebo-controlled clinical trial.Scientific reports · 2024Trial
- Nutritional Approaches to Managing Brain Fog: Insights Into Neuroinflammation, the Gut-brain Axis, and Sleep.Current nutrition reports · 2026Review
- Insomnia: the gut microbiome connection, prospects for probiotic and postbiotic therapies, and future directions.Journal of advanced research · 2026Review
- Rhythms of life: melatonin, nutrition, sleep, and antioxidant strategies for healthy aging.Frontiers in neuroscience · 2026Review
- The Effect of Tart Cherry on Sleep Quality and Sleep Disorders: A Systematic Review.Food science & nutrition · 2025Review
- The Consumption of Milk or Dairy Products and Sleep Quality: A Systematic Review and Meta-Analysis.Cureus · 2025Review
- The human gut microbiome and sleep across adulthood: associations and therapeutic potential.Letters in applied microbiology · 2025Review
- Foods for Sleep Improvement: A Review of the Potential and Mechanisms Involved.Foods (Basel, Switzerland) · 2025Review
- The role of fermented foods in maternal health during pregnancy and infant health during the first 1,000 days of life.Frontiers in nutrition · 2025Review
- The Impact of Probiotic Supplementation on the Sleep Quality of Humans: A Review of Results of Randomized, Blinded, Controlled Studies.Current pharmaceutical design · 2025Review
- Diet quality in young adulthood and sleep at midlife: a prospective analysis in the Bogalusa Heart Study.Nutrition journal · 2024Article
- Review
- Diet quality in young adulthood and sleep at midlife: a prospective analysis in the Bogalusa Heart Study.Research square · 2023Article
- Microbiota Composition and Probiotics Supplementations on Sleep Quality-A Systematic Review and Meta-Analysis.Clocks & sleep · 2023Review
- Associations between Milk Intake and Sleep Disorders in Chinese Adults: A Cross-Sectional Study.Nutrients · 2023Article
- Exploring the Role of Dairy Products In Sleep Quality: From Population Studies to Mechanistic Evaluations.Advances in nutrition (Bethesda, Md.) · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo study the effect of Lactobacillus helveticus fermented milk on sleep and health perception in elderly healthy subjects. SUBJECTS: The study included 29 healthy elderly subjects aged 60-81 years.
methodsProspective, randomized, double-blind and placebo-controlled, with a crossover design. The study included two intervention periods of 3 weeks each, separated by a 3-week washout period. Subjects took 100 g of fermented milk drink or a placebo drink (artificially acidified milk) daily in the first supplementary period and the other drink in the second supplementary period. For each period, we measured sleep quality by means of actigraphy and a sleep questionnaire, and assessed the quality of life (QOL) by SF-36 health survey.
resultsThere was a significant improvement in sleep efficiency (P=0.03) and number of wakening episodes (P=0.007) in actigraph data after intake of fermented milk, whereas no significant changes were observed for the placebo. Fermented milk did not improve the SF-36 scores significantly from the baseline period. In the GH domain (general health perception) of the SF-36, however, there was marginal improvement as compared to the baseline period. Although the difference between fermented milk and placebo was not statistically significant for any of the sleep or QOL parameters, fermented milk produced slightly greater mean values for many parameters.
conclusionThis short-term (3-week) intervention study indicates that Lactobacillus helveticus fermented milk may have a more favorable effect on improving sleep in healthy elderly people as compared with placebo.
Indexed as
Identifiers
17851460What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.