News archive

EurekAlert / Elsevier · 24 Sept 2026 · Nutrition

Interviews with 20 women with PCOS mapped a nonlinear path into steadier eating

Study (qualitative). A paper in the Journal of Nutrition Education and Behavior (EurekAlert 24 September 2026) interviewed 20 women with polycystic ovary syndrome plus 13 doctors and four nurses at hospitals in Hunan Province, China. Grounded-theory analysis described three stages — intention, adoption, and maintenance — plus disengagement that can happen at any stage. Intention was fed by fertility worries, symptoms, self-esteem, and a change in knowledge. Adoption leaned on self-efficacy, health-information literacy, access to resources, and social support. Few reached maintenance, where goal setting, self-regulation, identity, and positive feedback helped them keep healthier food patterns. Ages were not reported in the release, so this is not tagged to an age band. Interviews, not a feeding trial and not a treatment claim. Educational nutrition notes.

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• Women
• Nutrition

• study

EurekAlert / Cornell University · 24 Sept 2026 · Nutrition

On nearly 150,000 new US foods, a health claim often did not mean a healthier product

Study (marketplace analysis). Miguel Gomez and Pei Zhou report in Nature Food (EurekAlert 24 September 2026) on nearly 150,000 foods and beverages launched in the United States over a decade, using Mintel new-product data. Scored with the UK Food Standards Agency Nutrient Profiling Model, which penalizes excess sugar, sodium, saturated fat, and calories and rewards fiber, protein, and fruit and vegetable content, about two-thirds of the new products qualified as less healthy overall even though about half carried an on-package health claim. A reduced-sodium soda was disproportionately likely to add sugar. A no-trans-fat packaged meal often leaned harder on saturated fat and sodium. The claim can be technically true while the whole product does not improve. This is a shelf analysis, not a trial of any eating plan. Educational nutrition notes.

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• Nutrition

• study

EurekAlert / UC San Francisco · 23 Sept 2026 · Nutrition

In a 20-person pilot, cutting ultra-processed food tracked lower depression scores

Study (pilot crossover). Chagwedera, Krystal, and colleagues report in JAMA Psychiatry (23 September 2026; doi 10.1001/jamapsychiatry.2026.2320; UCSF release the same day). Twenty adults with depression, high ultra-processed food intake, high BMI, and at least one of hypertension, diabetes, or elevated LDL cholesterol — mean age 43.7 years, range 18 to 80, about 70% women — spent four weeks on their usual food and four weeks on a low ultra-processed food pattern they shopped for themselves. Nineteen finished. Intake scores fell from about 10.1 to about 1.4, described as more than an 85% cut, and depression scores were moderately to largely lower on three measures during the low ultra-processed phase. Anxiety scores improved modestly. Activity, sleep, and usual care were held steady. Self-reported intake, no objective food assay, and no adverse events reported. A feasibility pilot, not proof that this food pattern treats depression. Educational nutrition notes.

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• Cardiovascular / lipids
• Metabolic / glucose
• Nutrition

• study
• sleep

EurekAlert · 22 Sept 2026 · Nutrition

Excess free cysteine pried iron from ferritin and killed cells via mitochondria in a Rockefeller study

Study (cell). Toshitaka Nakamura, Kivanç Birsoy and Rockefeller colleagues report in Nature Metabolism that excess cysteine mobilizes iron from ferritin, floods mitochondria via SLC25A28, and triggers iron-dependent cell death. Glutathione does not do this, which may explain why cells spend energy packing cysteine into glutathione. Cell biology, not a diet trial. Educational research notes, not an amino-acid warning label.

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• Metabolic / glucose
• Nutrition

• study

ScienceDaily · 21 Sept 2026 · Nutrition

Scientists create a needle-thin brain implant that can do three jobs at once

A new needle-thin brain implant can record neural activity, deliver drugs, and stimulate multiple brain regions using a single flexible fiber. Successful tests in mice suggest it could give scientists a more precise, less invasive way to study the brain and may eventually help treat neurological disorders such as epilepsy.

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• Cognitive / dementia research
• Nutrition
• Medicine

• cognition
• study

ScienceDaily · 20 Sept 2026 · Nutrition

8 common food additives linked to high blood pressure and heart disease

Common preservatives hiding in processed foods may carry unexpected heart risks, with heavy consumption linked to substantially higher rates of high blood pressure and cardiovascular disease. Researchers identified eight widely used preservatives associated with hypertension, although the observational study cannot prove they were directly responsible.

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• Cardiovascular / lipids
• Nutrition

• news
• study

ScienceDaily · 20 Sept 2026 · Nutrition

Hidden gut defect that may explain why IBD keeps coming back

Researchers have uncovered a hidden molecular warning sign of inflammatory bowel disease (IBD) that can linger even when patients feel well and appear to be in remission. By studying around 900 human gut biopsies and patient-derived mini-intestines, the team found that intestinal cells can remain unusually primed to die, creating a “smoldering” defect that may help drive future flare-ups.

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• news
• gut
• inflammation
• study

Flinders University / EurekAlert · 20 Sept 2026 · Nutrition

A review of 17 hospital feeding guidelines found none written for critical illness after surgery

Commentary (guideline review). Chen Xin, Frances Lin, and colleagues at Flinders University and Capital Medical University appraised 17 hospital nutrition guidelines in Clinical Nutrition (doi 10.1016/j.clnu.2026.106755; EurekAlert 20 September 2026). They found extensive feeding guidance for people who are critically ill, and no guideline written for critical illness after major surgery. The review says feeding support, when it is safe, often starts in the first 24 to 48 hours, preferably through the gut, with amounts that change by injury. Severe burns may need a large protein supply very early. A badly injured bowel may need tube feeding or intravenous feeding until ordinary meals are possible. The authors argue that nutrition is part of recovery, not an extra, and that teams should look for malnutrition risk early and keep rechecking it. This is a synthesis of hospital guidelines, not a home meal plan and not a trial that assigned a diet. Educational notes for care teams and families.

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• Nutrition
• Medicine

• commentary
• gut
• study

News-Medical · 20 Sept 2026 · Nutrition

In 92 memory-clinic patients 65 and older, higher polyphenol intake tracked lower odds of MCI

Study (cross-sectional). Grasso and colleagues report in Antioxidants (2026; 15(9):1181; doi 10.3390/antiox15091181) on 92 autonomous adults aged 65 or older at a memory clinic in Troina, Italy. People without mild cognitive impairment reported higher intakes of total polyphenols, flavonoids, and lignans than those with MCI. The highest-versus-lowest groups still differed after adjustment for energy, age, sex, education, and smoking, with flavones the strongest flavonoid signal. Total polyphenol intake was not significantly tied to MMSE or MoCA scores, and links to inflammatory markers were weak. Small dietary-recall study without correction for multiple comparisons. Exploratory association, not evidence that a polyphenol pill prevents dementia. Educational nutrition notes.

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• 60+
• Cognitive / dementia research
• Nutrition

• study
• cognition
• inflammation

npj Aging · 19 Sept 2026 · Nutrition

A “completion gap” idea frames midlife weight gain as meals finishing ahead of falling energy need

Commentary (perspective). An npj Aging paper (19 September 2026, doi 10.1038/s41514-026-00503-5) proposes the completion-gap framework: meal-completion drive and physiological energy demand are only partly coupled, so a persistent mismatch can raise weight until a new equilibrium. It is a testable model, not a trial. Educational aging notes, not a diet.

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• Nutrition
• Aging

• commentary
• aging
• study

ScienceDaily · 18 Sept 2026 · Nutrition

Scientists restore a brain protein and reverse signs of aging in mice

Scientists found that declining levels of the brain protein Menin may help drive aging, with lower levels in mice linked to inflammation, cognitive decline, weaker bones, and thinner skin. Restoring Menin reversed several age-related changes, while the amino acid D-serine improved cognition, hinting at a potentially intriguing new target for healthy aging.

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• Cognitive / dementia research
• Nutrition
• Aging

• cognition
• aging
• inflammation

ScienceDaily · 17 Sept 2026 · Nutrition

Scientists find a natural gut compound that helps heal the intestine

A natural compound produced by gut bacteria after digesting foods such as pomegranates, walnuts, and berries may help repair and protect the intestinal lining. The discovery reveals a surprising beneficial side of an inflammatory pathway and could inspire more targeted treatments for Crohn’s disease and ulcerative colitis.

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• Nutrition

• news
• gut
• inflammation