October 22, 2026 · Sports, Health & Nutrition Daily Digest
A digest of sports, fitness, health, and nutrition developments compiled for October 22, 2026, with summaries, links, and commentary.
I. Nutrition and Diet
1. Nature Communications TEMPUS: In 187 adults with obesity, 8-hour eating, supervised exercise, or both did not beat Mediterranean-diet education on liver fat at 12 weeks (Nutrition)
Summary:
TEMPUS, from the Joint University Institute for Sport and Health at the University of Granada and collaborators, is a parallel randomized trial published in Nature Communications on October 14 and summarized by the university on October 22. Recruitment ran from May 2023 to April 2024, and the trial ended on September 5, 2025. Primary-outcome assessors and statisticians were blinded; intervention staff were not. All 187 adults with obesity (about half women) entered the intention-to-treat analysis: usual care 48, time-restricted eating 46, supervised exercise 47, and eating plus exercise 46. For 12 weeks every group received Mediterranean-diet and physical-activity education; time-restricted eating kept meals inside an 8-hour window; exercise combined supervised strength training and high-intensity aerobic work. Versus usual care, the MRI intrahepatic fat fraction changed by -0.4 percentage points with time-restricted eating (95% CI -2.0 to 1.2, P = 0.93), -0.8 with exercise (-2.4 to 0.8, P = 0.54), and -1.1 with the combination (-2.7 to 0.5, P = 0.28), with no significant differences among the three interventions. The university release adds that both fasting groups lost about 2.2 kg more than usual care, the combination lost more body fat than usual care or exercise alone, both exercise groups improved cardiorespiratory fitness, and about 30% of participants with fatty liver at baseline in the combination arm no longer met the diagnostic criteria used, compared with 6.5% in usual care. At one year, group differences in liver-fat change, weight, and body composition were no longer detectable. Registration: NCT05897073.
Links:
- Nature Communications — TEMPUS: time-restricted eating, supervised exercise, and intrahepatic fat
- University of Granada — October 22 note on TEMPUS
Commentary:
Once Mediterranean-diet and activity education are in place, an 8-hour eating window or one season of supervised training should not be expected to lower liver fat further over 12 weeks; the roughly 2.2 kg weight gap in the university release was no longer detectable at one year, so keeping it requires a maintenance plan.
2. Nutrition Research: In a secondary analysis of 62 adults with overweight, only the later-period link between more minimally processed animal food and weight gain survived multiplicity correction (Nutrition)
Summary:
Hana Kahleova, Tatiana Znayenko-Miller, Arathi Jayaraman, Laura Chiavaroli, Richard Holubkov, and Neal D. Barnard published a secondary analysis that ScienceDirect dates as an online journal pre-proof on October 1, 2026; the Physicians Committee for Responsible Medicine issued a news release on October 22. Sixty-two adults with overweight were randomized to a Mediterranean diet and a low-fat vegan diet for 16 weeks each, separated by a 4-week washout. Three-day diet records were classified with NOVA and by plant or animal source. Compared with the Mediterranean periods, the vegan periods cut minimally processed animal foods more and raised minimally processed plant foods more; the release puts those gaps at about 135 g/day less and 202 g/day more. In the first 16 weeks, changes in processed and ultra-processed animal foods had only nominal associations with weight gain (r = +0.30, P = 0.02; r = +0.36, P = 0.004), and neither survived Bonferroni correction. In the second 16 weeks, an increase in minimally processed animal foods correlated with weight gain (r = +0.42, P = 0.002), the only correlation to survive correction; the inverse association for minimally processed plant foods was nominal (r = -0.35, P = 0.01). The release cites the 2022 parent trial: about 6 kg lost on the vegan diet and no change on the Mediterranean diet. The abstract limits the claim to associations inside this exploratory secondary analysis.
Links:
- Nutrition Research — Animal versus plant foods, processing, and body weight
- Physicians Committee — October 22 news release
Commentary:
A minimally processed chicken breast and an apple do not get opposite weight effects from one surviving correlation; in 62 people from one trial, only the later-period link between minimally processed animal food and weight gain cleared multiplicity correction.
3. Science and Nature Medicine: Across 1,543 human-milk samples, maternal nutrition, mammary function, and infant growth shared a molecular signal (Nutrition)
Summary:
A Nature Medicine research highlight on October 22 points to a human-milk multi-omics study in Science, which NYU Langone described on October 8 as published online that day. An international team analyzed 1,543 milk samples from cohorts in Canada, Pakistan, and Burkina Faso, combining metabolites, proteins, micronutrients, macronutrients, human-milk oligosaccharides, and growth data. In samples from two randomized nutrition trials, one shared milk-composition signal was associated with both maternal supplementation and infant growth. Seven candidate markers along that axis were the short-chain acylcarnitines C2, C3, C4, and C5, plus lysine, 6'-sialyllactose, and selenium. C5 tracked more strongly with a weaker milk-synthesis signature and with patterns related to tissue remodeling and immune activity. Because acylcarnitine metabolism depends on coenzyme A made from pantothenic acid (vitamin B5), the authors propose that low B5 availability may contribute; that remains a mechanistic hypothesis built from cross-cohort associations. The highlight treats maternal nutrition as a public-health priority and does not offer a home milk test or a supplement dose.
Links:
- Science — Human milk composition, mammary function, and infant growth
- Nature Medicine — October 22 research highlight
Commentary:
During lactation, diet still follows existing maternal-nutrition guidance, and the C5 or vitamin B5 hypothesis is not a reason to start a supplement; the seven molecules are a research window, not a validated home test.
II. Exercise and Training Science
4. Scientific Reports: In 10,145 Chinese adolescents aged 13-18, a strength index from grip and standing long jump tracked with working memory and shifting (Training)
Summary:
Lu Li, Mengmeng Zhang, Feng Zhang, Cunjian Bi, and Pengwei Sun published a cross-sectional study in Scientific Reports on October 22. Stratified cluster sampling assessed grip strength, standing long jump, executive function, and covariates in 10,145 adolescents aged 13-18 across five regions of China. The inverse association between the paper's MSI and working-memory insufficiency was stronger in girls (OR = 0.802, 95% CI 0.763-0.843, P = 0.006) than in boys (OR = 0.888, 95% CI 0.792-0.996, P = 0.006). After covariate control, each 1-SD increase in MSI was associated with reaction-time decreases of 0.254 ms, 41.185 ms, and 20.311 ms for inhibition, working memory, and shifting (all P < 0.01). The same abstract then states that muscle strength correlates with working memory and shifting and shows no association with inhibition. The authors note that the data are cross-sectional and that longitudinal and intervention studies are needed before strength training can be said to improve executive function. Ethics approval: Chizhou University 7542864, dated January 1, 2024.
Links:
Commentary:
Adolescent strength moves with part of a cognitive battery, on the order of 41 ms of working-memory reaction time per standard deviation of the index; that is not a trial showing that more lifting makes students smarter, and the abstract's conclusion sentence does not count inhibition as associated.
5. Science & Sports: After 8 weeks of low-intensity endurance in 24 previously untrained young men, the creatine-kinase peak after eccentric damage was about 40% lower (Training)
Summary:
B. Wang and L. Wang report a randomized trial that the Elsevier Masson Science & Sports page lists as author-corrected proofs online on October 22, 2026. Twenty-four healthy men were assigned to 8 weeks of low-intensity endurance training (50%-60% of heart-rate reserve, 45 minutes a day, 5 days a week) or a sedentary control, then completed a standardized eccentric protocol meant to cause moderate muscle injury. The preconditioned group had a serum creatine-kinase peak about 40% lower and less subjective soreness. Satellite cells from that group proliferated more (about 1.8-fold more EdU-positive nuclei), showed a higher fusion index at 72 hours and 14 days, and expressed about 2.1-fold more MYOD1 and 2.7-fold more MYOG. Post-injury reactive oxygen species were lower, superoxide dismutase and catalase activities were higher, the rise in tumor necrosis factor-alpha was blunted, and interleukin-10 and insulin-like growth factor-1 were higher; in satellite cells, miR-206 was about 3.5-fold higher and miR-146a about 2-fold higher. The sample was young men who had not been training regularly, and the injury was one laboratory eccentric protocol.
Links:
Commentary:
Jogging before an injury is not a rehabilitation prescription on the basis of this proof; it is 24 young men and one experimental eccentric injury, with large fold-changes in groups of about a dozen, and it is early to extend the result to women, older adults, or real sports injuries.
6. Xinhua: The first pilot of China's student motor-ability standards reached a lessons-learned meeting, and a second wave will cover 302 schools (Training)
Summary:
Xinhua reported on October 22 that 22 national standards for student motor ability, led by the China National Academy of Educational Sciences, were released in May 2024, and that more than 800 schools in the first pilot built them into physical-education teaching. A lessons-learned visit in Changsha on October 21 watched computer-vision scoring of football and other tasks. Yu Sumei, director of the Institute of Physical and Aesthetic Education, said the standards mark progress by level, use assessment to push teaching quality, and make at least two hours a day of comprehensive physical activity a trackable practice. Liao Wenke, deputy director of the Basic Education Teaching Guidance Committee of the Ministry of Education, said evaluation should stay scientifically specified, respect school conditions, and interpret scores cautiously. A second pilot is about to start in 302 schools, covering intelligent assessment, motor-ability certification, a dual target of fitness plus motor ability, and reform of the senior-high entrance physical-education exam. The day's report did not publish a new pass mark for any single test.
Links:
Commentary:
Families with school-age children can use the existing line of at least two hours a day of comprehensive physical activity, and the second pilot of 302 schools; a lessons-learned meeting did not rewrite a pass score.
III. Public Health and Disease Prevention
7. ECDC: On October 22 the agency pointed influenza, RSV, COVID-19, and pneumococcal vaccination back to national schedules (Public health)
Summary:
The European Centre for Disease Prevention and Control posted cold-season protection advice on October 22. Influenza, respiratory syncytial virus infection, COVID-19, pneumococcal disease, and other respiratory infections can cause severe illness and raise demand on health services. The centre stresses vaccination to reduce severe illness, and lists hand hygiene, covering coughs and sneezes, staying home while sick, and regular ventilation. Higher risk of severe illness includes young children, older adults, pregnant women, people with weakened immune systems, and people with some chronic conditions. The same steps matter for anyone in close contact with someone whose immunity is weakened. Health workers are asked to stay current with vaccination under national recommendations. The note gives no European incidence figures for this season and no new efficacy number for a specific vaccine, and it tells readers to check national immunization guidance.
Links:
Commentary:
This season, check the national schedule for influenza, COVID-19, RSV, and pneumococcal vaccines, and stay home when sick so the infection is less likely to reach young children, older adults, and pregnant people; the note is seasonal advice, not a new efficacy trial.
8. US CDC: As of October 15, confirmed measles cases were 4,410, and the deaths row lists 3 with a note that the count can change after review (Public health)
Summary:
The US Centers for Disease Control and Prevention measles page is marked updated on October 16, with data as of noon on October 15. The United States had 4,410 confirmed measles cases in 2026, of which 4,392 were reported by 47 jurisdictions and 18 were among international visitors. Forty-two new outbreaks were reported in 2026, and 96% of confirmed cases (4,228 of 4,410) were outbreak-associated. The 2026 deaths row lists 3, and the page says the number is subject to change and will be updated as more information and reviews are completed; CDC is also working with the Council of State and Territorial Epidemiologists on a standard case definition for measles deaths. The Guardian reported on October 22 that after a third death was added to the dashboard, the agency did not name the state. The page also says jurisdictions may have probable cases not yet notified to CDC, and the public total counts only confirmed cases that have been notified.
Links:
- CDC — US measles cases and outbreaks as of October 15
- The Guardian — October 22 report on the third death and disclosure
Commentary:
Measles remains vaccine-preventable, and confirmed cases already span dozens of jurisdictions; people who are not up to date, especially households with an infant or a pregnancy, should follow the local immunization schedule rather than wait for a state death count to be reconciled.
9. CPPCC: An October 21 session on chronic-disease control cited the 15th Five-Year Plan target of major-chronic-disease premature mortality below 13% (Public health)
Summary:
The National Committee of the Chinese People's Political Consultative Conference posted on October 22 that its 50th biweekly consultative symposium of the 14th CPPCC met in Beijing on October 21 on comprehensive chronic-disease prevention and control, chaired by Wang Huning. A same-day review in the CPPCC newspaper quotes the 15th Five-Year Plan outline: strengthen comprehensive chronic-disease control, build a full chain of prevention, treatment, rehabilitation, and management, improve early screening, diagnosis, and treatment, and bring premature mortality from major chronic diseases below 13%. Members discussed primary-care and county medical communities actively measuring weight, blood pressure, lipids, and glucose; the boundary between cancer screening and a routine checkup; individualized goals in older adults; and where traditional Chinese medicine sits in prevention, early detection, treatment, rehabilitation, and long-term management. Officials from the National Development and Reform Commission, the National Health Commission, and the National Healthcare Security Administration briefed the session. The day's releases did not publish new personal laboratory cutoffs or a new starting age for screening.
Links:
- CPPCC — October 22 notice of the chronic-disease symposium
- CPPCC newspaper — October 22 review of the symposium
Commentary:
What an individual can do is still to have weight, blood pressure, lipids, and glucose measured in primary care, and to separate a routine checkup from cancer screening; 13% is a premature-mortality target cited from the plan outline, not a new national measurement from this meeting.
IV. Sleep and Mental Health
10. JAMA Pediatrics: On 7,591 nights from 425 adolescents, phone use above one's own average after 10 p.m. lined up with sleep about 65 minutes later and about 20 minutes shorter (Sleep)
Summary:
An intensive longitudinal analysis from the Adolescent Brain Cognitive Development Study was published online in JAMA Pediatrics on October 19 and summarized by health outlets on October 22. Four hundred twenty-five US adolescents on Android phones with at least 14 days of overlapping app logs and Fitbit sleep (mean age 14.8 years, 50.8% female) contributed 7,591 person-nights; data were collected from November 30, 2020, to February 5, 2024. On nights when phone use after 10 p.m. exceeded a participant's own evening average, total sleep was 20.05 minutes shorter (SD 49.42) and sleep onset was about 64.73 minutes later (SD 50.95). After adjustment, each extra minute after 10 p.m. above one's own average was associated with sleep onset 0.87 minutes later (95% CI 0.84-0.90), offset 0.37 minutes later (0.33-0.41), and total sleep 0.43 minutes shorter (-0.47 to -0.39). Use in the final 5 minutes before onset was associated with 0.74 additional minutes of sustained wake (0.50-0.98), concentrated in the first 30 minutes after onset. The models separate within-person from between-person associations and remain observational.
Links:
Commentary:
To move sleep onset earlier, the minutes to cut are those after 10 p.m. above one's own usual use, especially the last few minutes before bed; each extra minute lined up with about 0.9 minutes later onset, as a within-person association rather than a randomized trial.
11. The Lancet Public Health: Among 500 pregnant women with recurrent depression who were euthymic at enrollment, an online mindfulness course cut relapse hazard to 0.74 (Mental health)
Summary:
Sona Dimidjian and colleagues report a single-blind pragmatic randomized trial in the November 2026 issue of The Lancet Public Health; the University of Colorado Boulder described it on October 21 and Medical Xpress on October 22. From March 7, 2019, to July 8, 2020, the team recruited pregnant women in the United States who were not clinically depressed at entry, had recurrent depression, and were on recent or current antidepressants; data collection ended on September 12, 2021. Five hundred participants (mean age 32 years, mean 11.5 weeks' gestation) were analyzed by intention to treat: 249 received 12 weeks and eight sessions of Mindful Mood Balance for Moms plus usual care, and 251 received usual care alone. By six months postpartum, relapse occurred in 81 of 249 (33%) versus 111 of 251 (44%), hazard ratio 0.74 (95% CI 0.56-0.99, P = 0.045). During the 12-week intervention, mean PHQ-9 fell by 0.75 versus 0.31; across the full study the decreases were 0.61 versus 0.54, and that full-period difference was not significant. An accompanying comment notes that about 85% of participants identified as white. Registration: NCT03623620. The program is framed as relapse prevention, not as treatment of a current perinatal depressive episode.
Links:
- The Lancet Public Health — Online mindfulness-based cognitive therapy for perinatal depressive relapse
- The Lancet Public Health — Accompanying comment
Commentary:
For a pregnant person with recurrent depression who is currently euthymic and has recently used an antidepressant, this is an eight-session online prevention course with about a one-quarter lower relative hazard of relapse; it does not replace treatment of an active episode, and the sample was mostly white.
V. Evidence and Clarification
12. Scientific Reports: Athlete-AI injury-risk scores came from public datasets and simulated labels, and F1 fell from 86.6% to 72.8% when the variables that defined the labels were removed (Evidence)
Summary:
R. Kanthavel, R. Dhaya, Satish R. Jondhale, Amruta S. Jondhale, and Geetanjali Sharma published Athlete-AI in Scientific Reports on October 22. The framework fuses wearable, motion, and pose features with literature-derived athlete variables, using public benchmarks including PAMAP2, Human3.6M, and Microsoft COCO, plus literature parameters that build simulated workload, fatigue, recovery, and injury-risk scenarios. Across five random seeds, calibration, ablation, and a leakage check, removing the workload, fatigue, recovery, and biomechanical-risk variables used to define the simulated labels dropped the F1-score from 86.6% to 72.8%. A model using only benchmark-derived features performed comparably to a shuffled-label control. The authors state that the figures are computational experiments and are not real-world, clinical, or prospective athlete validation, and that deployment needs longitudinal data from real athletes.
Links:
Commentary:
An injury-risk F1 above 80% needs a check on whether the label was built from workload and fatigue; this paper reports a drop to 72.8% when those variables are removed, and it has no prospective validation in real athletes, so it is not a reason to change a training plan.
13. US FDA: On October 19 the agency finalized identity and safety expectations for new dietary ingredient notifications; efficacy is outside this guidance (Evidence)
Summary:
The US Food and Drug Administration announced on October 19 a final guidance, "New Dietary Ingredient (NDI) Notifications and Related Issues: Identity and Safety Information About the NDI." It finalizes three sections of the 2016 revised draft: identity information about the new dietary ingredient and the dietary supplement, history of use or other evidence of safety, and a summary of the basis for the safety conclusion. The notice says the new dietary ingredient notification is the agency's only chance to evaluate the safety of a new dietary ingredient before it reaches consumers, and it recommends which kinds of studies to submit and when. The guidance is written for manufacturers and distributors. The announcement does not find any named product effective and does not give a consumer dose.
Links:
Commentary:
A new supplement on the shelf still raises the question of whether the ingredient is new and whether identity and safety information exist; this guidance covers the premarket safety notification, not evidence that a product improves sleep, weight, or performance.
Today's Summary
- Diet: Time-restricted eating plus supervised exercise in 187 adults did not lower liver fat more than Mediterranean-diet education; in a secondary analysis of 62 adults, only the later-period link between minimally processed animal food and weight gain survived multiplicity correction; seven molecules in 1,543 milk samples remain research markers, not a home test.
- Training: A strength index in 10,145 Chinese adolescents lined up with about 41 ms of working-memory reaction time per standard deviation; low-intensity endurance preconditioning in 24 young men is not yet a rehabilitation protocol; the second pilot of the student motor-ability standards covers 302 schools.
- Public health: ECDC pointed influenza, RSV, COVID-19, and pneumococcal vaccines back to national schedules; the United States had 4,410 confirmed measles cases as of October 15, with 3 deaths listed and subject to review; the chronic-disease symposium cited a plan target of premature mortality below 13%.
- Sleep, mental health, and evidence: Each extra minute of phone use after 10 p.m. lined up with sleep onset about 0.87 minutes later; an online course in 500 pregnant women corresponded to a relapse hazard ratio of 0.74; an injury-risk model fell to an F1 of 72.8% after simulated label variables were removed, and the new dietary ingredient guidance covers identity and safety only.
Daily Framing:
October 22 in the sports, health, and nutrition cycle was a day for reading primary endpoints apart from headlines: time-restricted eating plus exercise did not lower liver fat further, food source and weight remained a small-sample correlation, evening phone use and an online perinatal course supplied more specific minutes and a relapse hazard ratio, and measles plus the respiratory season put vaccination back on the personal calendar.
This digest is compiled from real-time search results and is for reference only.