October 18, 2026 · Sports, Health & Nutrition Daily Digest
A digest of sports, fitness, health, and nutrition developments compiled for October 18, 2026, with summaries, links, and commentary.
I. Nutrition and Diet
1. Frontiers in Microbiology: After 84 days, a high-fiber formula produced lower adjusted HbA1c and BMI than metformin alone in newly diagnosed diabetes with overweight (Nutrition)
Summary:
Yan Li, Yalei Liu, Huijuan Yuan, Chenhong Zhang, and colleagues published a single-center, open-label, head-to-head trial in Frontiers in Microbiology on October 2. Medical News Today discussed it on October 18. Adults with newly diagnosed type 2 diabetes, HbA1c from 6.5% to under 9.0%, and BMI of at least 24 were randomized to a high-fiber formula plus dietary guidance without glucose-lowering drugs (36 people) or physician-titrated metformin alone (12 people) for 84 days; 34 and 12 completed. At day 84, baseline-adjusted mean HbA1c was 6.32% (95% CI 6.11-6.53) versus 6.74% (6.39-7.09; P = 0.042), and BMI was 28.42 versus 30.22 kg/m2 (P < 0.001). The fiber group's microbiota had shifted by day 28, with more Bifidobacterium and Lactobacillus and less Bilophila wadsworthia; the metformin group showed no overall community shift. Baseline BMI was already lower in the fiber group, and the metformin arm had only 12 people. Registration: ChiCTR-INR-17011752.
Links:
- Frontiers in Microbiology — High-fiber diet, microbiota, glucose, and weight
- Medical News Today — October 18 reading of the trial
Commentary:
People with newly diagnosed, untreated type 2 diabetes and overweight can ask a clinician about a structured high-fiber formula as an early diet option; this unequal open-label comparison is not a reason to stop metformin, and the intervention was a prescribed formula.
2. BMC Geriatrics: Among 218 older adults with fragility fractures, raising protein to 1.5-2.0 g/kg during the acute stay did not improve complications or discharge destination (Nutrition)
Summary:
Mika F. Rollmann, Carolina Vogel, and colleagues published a single-center randomized trial in BMC Geriatrics on October 17. A Level I trauma center enrolled 218 adults aged 70 or older with fragility fractures (mean age 81.8 years; 72.0% women). Of 100 people (45.9%) who screened positive for nutritional risk, 46 were randomized to a protein-enriched diet targeting 1.5-2.0 g/kg/day and 54 to a standard diet; 118 people who screened negative were an observational reference group. Medical complications occurred in 45.0%, with no significant difference among groups. Albumin fell and C-reactive protein rose during the stay, again without group differences. People at nutritional risk were less often independently mobile and discharged home. In multivariable analysis, age-adjusted comorbidity, not the nutrition intervention, was associated with discharge destination. The trial was registered retrospectively on May 12, 2026 (NCT07582575).
Links:
Commentary:
For frail older adults in hospital after a fracture, pushing protein to 1.5-2.0 g/kg for the acute stay should not be expected to change complications or the chance of going home; nutrition has to continue into rehabilitation after discharge.
II. Exercise and Training Science
3. Archives of Physical Medicine and Rehabilitation: In 46 adults with spinal cord injury and chronic pain, community aerobic plus strength training reduced pain intensity, while the primary pain score stayed inconclusive (Training)
Summary:
Kathleen Martin Ginis and colleagues reported a pragmatic randomized trial in the Archives of Physical Medicine and Rehabilitation; the University of British Columbia described it on October 16. Forty-six adults at least 12 months after spinal cord injury, with chronic neuropathic or musculoskeletal pain and not already meeting both aerobic and strength guideline doses, were assigned to a personalized prescription plus weekly counseling (25) or usual activity (21). The starting prescription was at least 20 minutes of moderate-to-vigorous aerobic exercise twice a week, plus two weekly strength sessions of 3 sets of 10 repetitions for each major functioning muscle group. In the intent-to-treat analysis, the 6-month effect on SF-36 Pain was 7.9 points (95% CI -1.9 to 17.7; P = 0.11), so the primary outcome was inconclusive. The spinal cord injury-specific pain-intensity effect at 6 months was -1.8 points (-3.4 to -0.1; P = 0.04); a reduction of at least 30% occurred in 8 of 18 versus 2 of 16. The aerobic prescription was met in 76% of intervention weeks on average, and the strength prescription in 61%. The planned sample was 84; recruitment was interrupted by the pandemic and wildfire evacuations.
Links:
- Archives of Physical Medicine and Rehabilitation — Community exercise for chronic pain after spinal cord injury
- UBC Okanagan — Trial design and pain-intensity results
Commentary:
After spinal cord injury, a practical first step for chronic pain is to make twice-weekly bouts of about 20 minutes of moderate-to-vigorous aerobic work consistent, with strength as an add-on; this under-recruited trial did not show a clear gain on the combined pain score and is not a reason to stop medication.
4. Scientific Reports: Across 31 controlled trials and 818 trained adolescent athletes, core training was more consistent for balance and core endurance than for jumping and sprinting (Training)
Summary:
Fengming Zhang, Chengzhi Ji, Oleksandr Yeremenko, and colleagues published a systematic review and random-effects meta-analysis in Scientific Reports on October 15. They pooled controlled trials, randomized and non-randomized, in trained athletes aged 10-19 years at McKay Tier 2 or above: 31 studies and 818 athletes. Compared with control conditions, core training was associated with improvements in countermovement jump, standing long jump, sprints of 20 meters or longer, change of direction, dynamic and static balance, core stability, and dynamic and isometric core endurance. Evidence for sprints of 10 meters or less was inconclusive. Certainty ranged from moderate to very low. Benefits were more consistent for balance and core outcomes than for jumping, sprinting, and change of direction. PROSPERO registration: CRD420261379288.
Links:
Commentary:
Adolescents who already train can add core work to regular sessions for postural control and core endurance; a set of planks should not be expected to produce a clear gain in jumping or sprinting, and some outcomes rest on very low-certainty evidence.
5. Cell: After eight weeks of voluntary wheel running, exercise adaptation across 22 mouse tissues differed by tissue, sex, and time of day (Training)
Summary:
Geraldine Maier, Manoj Hariharan, and colleagues published a multi-omics atlas online in Cell on October 15. Young male and female mice ran voluntarily on wheels for eight weeks and were compared with sedentary mice. The team sampled 22 tissues and plasma in active and inactive phases for bulk transcriptomics, metabolomics in eight tissues and plasma, proteomics in four leg muscles, and single-nucleus transcriptomes plus DNA methylation in three leg muscles. Skeletal muscle showed the largest whole-tissue transcriptomic changes. Except for hypothalamus, kidney, and lung, most tissues changed more during the active phase. Female mice showed broader transcriptional responses and a distinct pattern of downregulation. Single-nucleus methylation revealed cell-type-specific changes that bulk tissue profiles would miss, including gene-body demethylation that tracked fiber-type switching. Machine learning identified a conserved molecular signature that could recognize exercise status across mammalian species. This is voluntary wheel running in mice, not a human training prescription.
Links:
Commentary:
One workout does not rewrite every organ in the same way, and this atlas shows that adaptation also varies by sex and time of day; because the data come from mice on wheels, they do not set a clock time or a minute dose for people.
III. Public Health and Disease Prevention
6. New England Journal of Medicine: In 283 adults with type 2 diabetes not using insulin, continuous glucose monitoring lowered HbA1c by an extra 0.9 percentage points over 26 weeks (Public health)
Summary:
Tamara K. Oser, Roy W. Beck, and the CONNECT Study Group published a randomized trial in the New England Journal of Medicine on October 14. At 22 U.S. primary care practices, adults with type 2 diabetes who were not using insulin were assigned to continuous glucose monitoring (145) or routine care (138). Ages ranged from 21 to 84 years, and follow-up was 26 weeks. HbA1c fell from 8.8% to 7.2% with monitoring and from 8.7% to 8.0% with routine care, an adjusted difference of -0.9 percentage points (95% CI -1.1 to -0.6; P < 0.001). Time with glucose between 70 and 180 mg/dL was 21 percentage points higher (16 to 26), about five extra hours a day. Time below 54 mg/dL differed by -0.17 percentage points and met noninferiority. No severe hypoglycemia was reported. Dexcom funded the trial (NCT06601166).
Links:
Commentary:
Adults with type 2 diabetes who are treated in primary care and are not yet using insulin can ask whether a continuous glucose monitor would help lower average glucose and time out of range; the sensor does not replace diet or medication, and the device maker funded the trial.
7. JAMA Network Open: From 2019 to 2024, yearly cervical screening rates stayed lowest in the South and West among up to about 16 million women with a recorded visit (Public health)
Summary:
Abigail Zamorano and colleagues published a cross-sectional study online in JAMA Network Open on October 16. Using Epic Cosmos records, they measured yearly cervical cancer screening from 2019 through 2024 among people assigned female at birth, aged 21 to 64, with at least one visit and no history of cervical cancer. Analytic samples were about 9 to 16 million a year and grew over time. In 2024 the South was at 12.27%, the West 13.47%, the Northeast 14.07%, and the Midwest 16.20%. Ages 21-29 rose from 5.28% in 2019 to 14.05% in 2024; ages 50-64 were lowest in 2024, at 12.00%. Hispanic patients had the largest rise, from 9.85% to 15.51%. The authors wrote that American Indian, Alaska Native, Native Hawaiian, and Pacific Islander patients had the lowest rates throughout. These figures are the share screened in a given year. Because guideline intervals are mostly three to five years, a rate in the teens does not mean most people are overdue. The data cover only health systems using Epic.
Links:
Commentary:
Women aged 21 to 65 at average risk should check whether the last test falls inside the interval for their age, not whether they were screened this calendar year; that check matters more where yearly rates are lower.
IV. Sleep and Mental Health
8. ACOG: For hot flashes and related sleep problems, consider individualized hormone therapy before age 60 or within 10 years of menopause; herbal estrogens are not supported (Sleep)
Summary:
On October 15 the American College of Obstetricians and Gynecologists released Clinical Practice Guideline No. 13 on vasomotor, sleep, and mood symptoms of spontaneous menopause or menopause induced at or after age 40. The college's news release says natural menopause occurs at about age 50 on average in the United States; 50% to 92% of women in menopause report hot flashes or night sweats, 16% to 66% of U.S. women report menopause-related sleep disruption, and more than one-third of perimenopausal and postmenopausal women worldwide report depressive symptoms. If there are no contraindications, ACOG recommends starting hormone therapy before age 60 or within 10 years of spontaneous menopause after shared decision-making, with a progestogen added when the uterus is present. The guideline also covers nonhormonal drugs, including fezolinetant, elinzanetant, and SSRIs or SNRIs, and lists cognitive behavioral therapy, mindfulness, exercise, clinical hypnosis, and acupuncture as non-drug options generally used with medication. ACOG states that evidence does not support the safety or efficacy of phytoestrogens or herbal supplements for hot flashes or other menopausal symptoms.
Links:
- ACOG — Expanded recommendations for menopause symptoms
- ACOG — Clinical practice guideline on vasomotor, sleep, and mood symptoms
Commentary:
When hot flashes and night sweats come with poor sleep, the first conversation is with a clinician about the hormone-therapy window and contraindications, not a purchase of soy isoflavones or herbal products; exercise and cognitive behavioral therapy can be added, and they do not replace that discussion when hormones are contraindicated.
9. Movement Disorders: Among 287 people with isolated REM sleep behavior disorder, healthful plant-diet scores were lower, and higher coffee intake was linked to lower conversion risk (Sleep)
Summary:
Suyi Xie, Bei Huang, and colleagues first published an observational study in Movement Disorders on October 16. A Hong Kong cohort included 287 people with video-polysomnography-confirmed isolated REM sleep behavior disorder and 208 age- and sex-matched controls (mean age 66.9 versus 66.6 years; 74.6% and 68.3% men). On a 33-item food-frequency questionnaire, the adjusted odds ratio for the highest versus lowest healthful plant-based diet index was 0.48 (95% CI 0.29-0.80; P = 0.005), with higher intake of refined grains, sweets, and sweeteners. In shotgun metagenomes from 456 people, 84.3% of the microbes that differed with the disorder were associated with dietary factors. Over a median of 4.2 years, 45 people (15.7%) converted to an alpha-synucleinopathy. The abstract reports that higher coffee intake was associated with lower conversion risk, adjusted hazard ratio 0.30 (95% CI 0.11-0.78; P = 0.01). The authors note that early symptoms may have changed diet, that the questionnaire cannot quantify a Mediterranean pattern, and that exploratory tests used nominal significance.
Links:
Commentary:
For people who already have isolated REM sleep behavior disorder, eating fewer refined grains and sweets and keeping plant-food quality up fits these data better than healthy adults adding coffee to prevent Parkinson disease; the study used questionnaires and observation, not a coffee trial.
V. Evidence and Clarification
10. Clocks & Sleep: A narrative review links Mediterranean-style eating with better sleep but does not support any single eating schedule as a stand-alone sleep treatment (Evidence)
Summary:
Andrija Ivanisin, Tamara Soric, Marijana Matek Saric, and colleagues published a narrative review in Clocks & Sleep on October 15. They searched PubMed/MEDLINE, Scopus, and Web of Science and synthesized evidence on nutrients, foods, dietary patterns, meal timing, caffeine, and alcohol in relation to sleep, plus the reverse effects of short sleep on eating and metabolism. Higher-quality patterns, especially Mediterranean-style diets, are generally associated with more favorable sleep, but the evidence is mostly observational and does not establish cause. Trials of single foods and supplements are inconsistent and often small. Meal timing and time-restricted eating are likewise too inconsistent to recommend one schedule. Caffeine and alcohol have clearer sleep-disrupting effects. The review concludes that nutrition can complement other sleep strategies, and that no specific food, supplement, or eating time is a stand-alone treatment for insomnia.
Links:
Commentary:
For better sleep, keep a stable wake time and cut caffeine and alcohol later in the day; a Mediterranean-style pattern can sit alongside that, and an eight-hour eating window is not a sleep therapy.
Today's Summary
- Nutrition: A high-fiber formula beat a 12-person metformin arm over 84 days in newly diagnosed diabetes, with open-label and formula limits on how far that travels; raising hospital protein to 1.5-2.0 g/kg after fragility fracture did not change complications or discharge home.
- Training: For chronic pain after spinal cord injury, community aerobic work is the dose to stabilize first, and the combined pain score stayed inconclusive; adolescent core training was more consistent for balance and core endurance than for jumps and sprints; a mouse atlas shows exercise adaptation varies by tissue, sex, and time of day.
- Public health and sleep: In type 2 diabetes not treated with insulin, continuous glucose monitoring lowered HbA1c by an extra 0.9 percentage points over 26 weeks; cervical screening is an interval, not a yearly test; hot flashes have a hormone-therapy window, and herbal estrogens are not supported.
- Evidence limits: Plant-diet and coffee associations in isolated REM sleep behavior disorder are not a prescription to prevent Parkinson disease, and a narrative review does not support one eating schedule as a stand-alone insomnia treatment.
Daily Framing:
Today was a boundary-setting day in the sports, health, and nutrition cycle: glucose monitoring, menopausal hot flashes, and chronic pain each have something to discuss with a clinician, while a high-fiber formula, in-hospital protein, and herbal supplements should not be copied from a headline.
This digest is compiled from real-time search results and is for reference only.