October 13, 2026 · Sports, Health & Nutrition Daily Digest
A roundup of today's exercise, healthy-living, and nutrition developments for October 13, 2026, with summaries, links, and commentary.
I. Nutrition and Diet
1. BMC Nutrition: Counseling plus 20 g of whey raised protein intake by 29.1 g/day in 295 frail older adults during resistance training (Nutrition)
Summary:
Esmée J. M. Biersteker and colleagues at the Amsterdam University of Applied Sciences published a secondary analysis of the TEAMS trial in BMC Nutrition on October 13. The open-access paper randomized 295 frail community-dwelling older adults (mean age 73.9 ± 6.0 years, 69% women) to 12 weeks of resistance training alone (n = 146) or resistance training plus a protein intervention (n = 149). The intervention was dietary counseling and 20 g of whey protein daily, aimed at 1.2–1.5 g/kg/day, with intake measured by a 3-day record. At follow-up the intervention group ate 29.1 g/day more protein. The gaps were 9.1 g at breakfast, 2.4 g at the first snack, 5.2 g at lunch, 2.3 g at the second snack, 3.2 g at dinner, and 7.4 g at the evening snack. Overall protein-quality score was 33.8 points higher, and higher at every eating occasion. The extra protein came mainly from supplements, eggs, cheese, and milk products. Energy was 208.9 kcal/day higher and fat 7.3 g/day higher, with no significant carbohydrate difference. Funding included the Dutch Taskforce for Applied Research and in-kind plus cash support from Carezzo Nutrition and Fonterra; the paper says those funders had no influence on the report. This analysis measured intake, distribution, and quality, not strength or lean mass.
Links:
Commentary:
Frail adults already doing resistance training can put the extra protein at breakfast, lunch, and the evening snack; the added 209 kcal is real, and this paper does not show that muscle got stronger.
2. Loma Linda: 319 healthy older adults eating 30–60 g of walnuts daily for two years had a lower Dietary Inflammatory Index (Nutrition)
Summary:
Loma Linda University School of Public Health on October 13 released ancillary results from the Loma Linda cohort of the Walnuts and Healthy Aging trial. The paper appeared online on August 28 in the Journal of the Academy of Nutrition and Dietetics (doi: 10.1016/j.jand.2026.156835). In this arm of the two-center randomized trial, 319 free-living healthy older adults aged 63–79 (mean 69 years, 66% women) were assigned from May 2012 to May 2016 to walnuts (n = 166) or control (n = 153). The walnut group ate 1–2 ounces (30–60 g) daily. The control group avoided walnuts and substantially limited other nuts. Neither group was told to change the rest of the diet. Participants met researchers five times over two years, and the Dietary Inflammatory Index was calculated from previous-24-hour diet reports. Mean scores were -0.025 (SE 0.14) with walnuts and 0.615 (SE 0.14) in the control group (p<0.01). The university said the parent trial was supported by the California Walnut Commission. The release describes this paper as a shift in the inflammatory potential of the diet and notes that earlier papers from the same trial reported lower circulating inflammatory markers; the ancillary analysis itself reports the index.
Links:
- Loma Linda University — October 13 release
- Journal of the Academy of Nutrition and Dietetics — Walnuts and the Dietary Inflammatory Index
Commentary:
Healthy older adults can swap a sugary snack for a handful of walnuts to nudge the day's inflammatory diet score downward; this industry-funded result is a diet score, not a treatment dose for arthritis or heart disease.
3. BMC Public Health: Yingyangbao use tracked with lower anemia odds, not stunting, in 16,895 children aged 6–23 months in poor areas of Hunan (Nutrition)
Summary:
Huixia Li and colleagues at Hunan Provincial Maternal and Child Health Care Hospital published an open-access multiwave cross-sectional study in BMC Public Health on October 13. Eight rounds of the Nutrition Improvement Program for Children in Poor Areas, from 2016 through 2023, included 16,895 children aged 6–23 months. Annual stunting fell from 5.5% in 2016 to 3.8% in 2023, a relative decline of 30.9%. Underweight fell from 5.0% to 2.1% (58.0% relative), and wasting from 3.8% to 1.5%. Overall anemia fell from 29.3% to 6.2%, a relative decline of 78.8%. Logistic regression linked Yingyangbao consumption and duration to overall anemia and anemia severity, and not to stunting, underweight, or wasting. Versus no use, effective consumption had an adjusted odds ratio of 0.38 (95% CI 0.34–0.43) for overall anemia and 0.20 (0.16–0.26) for moderate anemia. Non-effective consumption had an AOR of 0.57 (0.50–0.64) for overall anemia. Versus zero months, 12 months or more of use had an AOR of 0.35 (0.27–0.43) for overall anemia. The abstract does not define the gram or frequency cutoff for effective use. The design is repeated cross-sections, not a randomized feeding trial.
Links:
Commentary:
For infants aged 6–23 months still covered by the poor-area program, using Yingyangbao as directed and for longer lines up with the anemia finding; the same data do not show better height or weight, and urban families have no reason to copy the product on their own.
4. Scientific Reports: Each extra point on the PURE healthy diet score meant an asthma odds ratio of 0.89 in 400 adults in Xinjiang (Nutrition)
Summary:
Xiaoli Liu, Yurong Huang, and colleagues at Xinjiang Production and Construction Corps Hospital published an open-access age-matched case-control study in Scientific Reports on October 13. Two hundred adults with physician-diagnosed asthma and 200 healthy controls completed a validated food-frequency questionnaire. The PURE Healthy Diet Score (0–24) counted fruits, vegetables, legumes, nuts, fish, and dairy. Controls scored higher than cases (14.4 ± 2.7 versus 10.4 ± 2.7). Each extra point had an odds ratio of 0.89 (95% CI 0.83–0.96). In the fully adjusted model, the top versus bottom quartile had an OR of 0.28 (0.12–0.57). Higher scores also tracked with better FEV1, FVC, and PEF, higher Asthma Control Test and Asthma Quality of Life Questionnaire scores, and lower FeNO. Zonulin, LPS, and TMAO were lower across higher quartiles. The authors call the mediation analyses exploratory and say they do not establish a causal pathway. Funding was from the Corps science program and had no role in design or publication.
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Commentary:
Adults who already have asthma can treat vegetables, fruit, legumes, fish, nuts, and dairy as the dietary background that lined up with lung function and control scores; this is a prevalent-case comparison, so illness may also have changed how people ate.
II. Exercise and Training Science
5. UCL: Physical activity improved depression, mood, and quality of life across 12 randomized trials in 1,003 women aged 40–65 (Training)
Summary:
University College London on October 13 released a systematic review and meta-analysis by Simone Saidel, Aimee Spector, and colleagues in Menopause (doi: 10.1097/GME.0000000000002827). Searches through April 2025 included 12 randomized trials and 1,003 women aged 40–65 in perimenopause or early postmenopause, with data from Brazil, China, Tunisia, India, Iran, Korea, and the United States. Random-effects models found improvements in depression (Hedges g = -1.37, 95% CI -1.96 to -0.79), mood (g = 0.84, 0.40–1.29), psychological quality of life (g = 0.66, 0.19–1.13), and overall quality of life (g = 1.10, 0.32–1.88). Aerobic activities such as walking, Zumba, dance, and taekwondo improved depression (g = -1.07), mood, and overall quality of life. Mind-body activities such as yoga, tai chi, Pilates, and stretching improved psychological quality of life (g = 0.80). Depression fell in both perimenopause and early postmenopause; the other gains were clearest after the final period. The release cites examples of walking three times a week for 30 minutes and Zumba three times a week for one hour. The investigators say studies varied widely, many trials were at high risk of bias, and better trials are needed to show which activity helps most.
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Commentary:
Women in perimenopause or early postmenopause can schedule walking, dance, or yoga several times a week as a low-cost addition to medical and psychological care; the pooled effects are large, and many source trials were at high risk of bias, so this is not a reason to stop hormone therapy that is already in use.
6. BMC Geriatrics: Cognition and depression effects of multicomponent exercise plus nutrition in 1,814 adults aged 60 and older were unstable after publication-bias correction (Training)
Summary:
Wenhua Zhang, Jiecai Zheng, Dianbo Zhang, and colleagues published an open-access systematic review in BMC Geriatrics on October 13. Searches of PubMed, Embase, Web of Science, and the Cochrane Library through June 30, 2026, included randomized trials of adults aged 60 and older that combined multicomponent exercise with a nutrition intervention. Nine trials and 1,814 participants contributed, with global cognition in seven and depressive symptoms in five. Random-effects estimates were Hedges g = 0.31 (95% CI 0.08–0.54) for cognition and g = -0.51 (-0.93 to -0.09) for depressive symptoms. I-squared was 68.54% for cognition and 63.54% for depression. Subgroups by nutrition type, baseline cognitive status, and exercise modality did not differ significantly. Only intervention duration showed a subgroup difference for cognition (P<0.001), and the abstract does not say which duration was better. After trim-and-fill, both estimates shrank and their 95% confidence intervals crossed zero. The authors label the conclusions exploratory.
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Commentary:
Adults over 60 can pair strength, balance, or aerobic work with diet changes as a support for cognition and mood; the pooled benefit from nine trials is sensitive to unpublished negative results and is not a memory-clinic treatment plan.
III. Sleep and Mental Health
7. Scientific Reports: In 1,869 college students, mostly in Henan, exercise tracked with lower social anxiety through body appreciation and emotion-regulation beliefs (Sleep)
Summary:
Xiaolong Zhang, Weijie Gao, and colleagues at Jeonbuk National University and Henan University published an open-access cross-sectional study in Scientific Reports on October 13. A total of 1,869 college students, mainly from Henan Province, self-reported physical exercise, body appreciation, regulatory emotional self-efficacy, and social anxiety. Pearson correlations and PROCESS Model 6 with 5,000 bootstrap samples showed exercise negatively associated with social anxiety and positively associated with body appreciation and regulatory emotional self-efficacy. Each of those two measures formed a significant indirect association, and a sequential indirect association was also significant. The abstract does not report the correlation coefficients or the size of the indirect effects. Ethics approval was 20260516102. The authors say the results are statistical associations and do not show temporal order or causation.
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Commentary:
College students who feel socially anxious can treat regular exercise as something that travels with a kinder view of the body and a belief that emotions can be regulated; one questionnaire does not show that the gym comes first, and severe avoidance still belongs with a clinician.
8. BMC Psychology: Among 1,245 adolescents aged 12–18 in four schools in one Chinese city, activity linked to pathological internet use through sleep problems and negative emotion (Sleep)
Summary:
Xiaoming Zhou, Ruilin Xu, and colleagues at Chang'an University, Beijing Sport University, and Zhengzhou University published an open-access cross-sectional survey in BMC Psychology on October 13. Stratified cluster sampling recruited 1,245 adolescents aged 12–18 from four public secondary schools in one major city. Measures were the short International Physical Activity Questionnaire, the Pittsburgh Sleep Quality Index, the Depression Anxiety Stress Scales-21, and the Compulsive Internet Use Scale. Structural equation modeling with 5,000 bootstraps found physical activity negatively associated with pathological internet use. Sleep problems and negative emotions each formed an indirect association and, in sequence, a chain from activity to pathological internet use. After measurement invariance, the activity-sleep association was stronger in girls (beta = -0.38 versus -0.22), and the emotion-internet association was stronger in boys (beta = 0.51 versus 0.34). The paper says the findings apply most directly to these four schools, and that some Chinese validations of the scales were not done in adolescents. There was no external funding.
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Commentary:
When a teenager's internet use is crowding out sleep, families can look at activity, sleep quality, and mood together; the pattern comes from questionnaires in four schools in one city and is not a training prescription for internet addiction.
9. University of the Sunshine Coast: More protective factors in adolescence, including social connection, tracked with later well-being beyond sleep, diet, and exercise (Sleep)
Summary:
The Thompson Institute at the University of the Sunshine Coast on October 13 released a Journal of Adolescence paper by Kassie Bromley, Taliah Prince, Daniel Hermens, and colleagues (doi: 10.1002/jad.70290). The Longitudinal Adolescent Brain Study followed adolescents aged 12–17 for up to five years and repeatedly recorded brain imaging, cognition, mental health symptoms, and lifestyle. The release says adolescents with more protective lifestyle factors were more likely to report positive well-being and lower psychological distress at later assessments after prior mental health was taken into account. Besides sleep, diet, and physical activity, the factors included social connectedness and mindfulness, meaning feeling connected to other people and present in daily life. Healthy behaviors and psychosocial strengths tended to cluster. The October 13 university release did not report the sample size, effect sizes, or the exact follow-up interval.
Links:
- University of the Sunshine Coast — October 13 release
- Journal of Adolescence — Cumulative lifestyle protective factors and adolescent well-being
Commentary:
Supporting adolescents includes time with other people and attention to the present day, alongside sleep, meals, and movement; the university release omitted sample size and effect size, so it cannot set a daily training dose.
IV. Public Health and Disease Prevention
10. The CDC said Tuesday it would send Epi-Aid support to Pennsylvania's measles outbreak, while death counts still differ from the state's (Public health)
Summary:
Reuters reported on October 13 that the U.S. CDC said Tuesday it would deploy additional support after Pennsylvania formally requested help through the Epi-Aid emergency response program, to investigate the outbreak with local officials, strengthen the response, and limit spread. Reuters said state officials had reported 1,136 measles cases and five linked deaths this year as of October 9, while the CDC listed two measles-associated deaths nationwide in 2026 as of October 8. The gap is tied to a dispute between Governor Josh Shapiro and Health Secretary Robert F. Kennedy Jr. over how a measles-associated death is defined. The Guardian the same day reported Franklin County's sixth death, announced Monday: a 39-year-old woman with underlying conditions. A coroner's office spokesperson said she was unvaccinated and that the primary cause was a probable acute cardiac event due to possible measles complications. The Guardian cited state officials on Monday for 1,137 cumulative cases and 219 hospitalizations, 157 new cases in the past week, about one-third of infections at age 18 or under, and fewer than 1% in people who were fully vaccinated. It also said the CDC site, updated the previous Friday, showed 4,080 confirmed U.S. cases and 42 outbreaks. Two doses of MMR remain the prevention step listed in state guidance and on the CDC page.
Links:
- Reuters — CDC to deploy additional support to Pennsylvania
- The Guardian — Pennsylvania announces a sixth measles-associated death
Commentary:
Unvaccinated adults who already have other illness can still become severely ill with measles, including a reported cardiac event; checking that you and your children have two documented MMR doses is the step available before federal and state death counts match.
Today's Summary
- Diet: frail older adults in resistance training who added 20 g of whey increased protein most at breakfast and the evening snack; a two-year walnut trial lowered the Dietary Inflammatory Index; Yingyangbao in Hunan tracked with child anemia and not with stunting.
- Training: walking, dance, and yoga lined up with better menopausal depression and quality of life across 12 randomized trials, many at high risk of bias; pooled cognition and depression effects of exercise plus nutrition in older adults did not hold after publication-bias correction.
- Mental health: exercise and lower social anxiety in college students, and activity and less pathological internet use in secondary students, are cross-sectional questionnaire links; adolescent protective factors also included social connection, and the release gave no sample size.
- Public health: the CDC agreed Tuesday to an Epi-Aid for Pennsylvania measles, state and federal death counts still differ, and the latest death was described by a spokesperson as unvaccinated.
Daily Framing:
Today in the sports, health, and nutrition cycle was a day of distribution and boundaries: protein belongs at breakfast and the evening snack, exercise signals for menopausal mood and older cognition are still unstable, and measles protection still starts with two documented MMR doses.
This digest is compiled from real-time search results and is for reference only.