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Why do we turn to comfort food? A survey of 1,203 adults offers clues

A cross-sectional study of 1,203 UK adults found that stronger expectations of positive emotions from high-fat, salt and/or sugar foods were weakly associated with poorer diet quality and more frequent comfort eating. Negative emotional expectations about many foods also tracked with comfort eating, but the study did not establish whether eating these foods actually changed mood.

29 Oct 2026

Multivitamins boost key vitamin levels, but do they improve your health?

A scoping review of 157 clinical trial reports found that multivitamins consistently improved circulating levels of folate, vitamin B6, and vitamin B12, while other nutritional and clinical effects varied by formulation, population, and baseline nutritional status. Selected prenatal and cognitive outcomes improved in some trials, but evidence for cardiovascular disease prevention was largely negative, and the review could not establish the overall certainty of clinical benefits.

29 Oct 2026

Is AI changing what gives our lives meaning?

A rapid review of 18 publications examines how artificial intelligence, immersive technologies, and other digital tools influence identity, existential inquiry, and the search for meaning. The findings suggest that digital literacy and knowledge management may support more reflective engagement with technology, although the evidence remains varied and does not establish causation.

29 Oct 2026

Worried nuts will cause weight gain? A large review puts that concern in perspective

A systematic review and meta-analysis of randomized trials found that eating nuts modestly reduced body fat and improved cholesterol levels without significantly changing body weight. The review did not establish that nuts rich in monounsaturated fats offered greater body-composition benefits than those rich in polyunsaturated fats.

29 Oct 2026

Can broccoli sprouts help with insulin resistance? New review offers clues

A review published in the British Journal of Nutrition examines how carotenoids and bioactive compounds in Brassicaceae microgreens may influence obesity, insulin resistance, and type 2 diabetes through metabolic and inflammatory pathways. Small human trials involving broccoli sprouts have reported improvements in selected metabolic markers, but larger, longer-term studies are needed to establish their clinical benefits.

29 Oct 2026

Fish, shellfish or seaweed? A Korean study found striking differences in chemical exposure

A national study of 4,279 Korean adults found that higher finfish consumption was associated with increased blood concentrations of PFAS, PCBs, and mercury, while shellfish showed narrower associations with three PFAS. Persistent chemical mixtures were also associated with modest increases in liver health biomarkers, and mediation analysis identified a positive PFAS-related pathway, although finfish intake was not significantly associated with GGT overall.

29 Oct 2026

Limited app use adds a twist to a nurse-led dementia risk trial

A cluster-randomized trial involving 403 Australian adults aged 45–65 found that a 12-month nurse-led behavioral intervention supported by a mobile app modestly improved estimated dementia risk scores compared with brief counseling and usual care. The study found no significant improvements in cognitive performance or other secondary outcomes, leaving its long-term effects on dementia prevention uncertain.

28 Oct 2026

Identical twins showed a survival divide when only one had Parkinson’s

Researchers followed 54 twin pairs discordant for Parkinson’s disease and found substantially higher 10-year mortality among affected twins, including in genetically identical pairs. They also observed more frequent constipation among affected twins, but dietary and nutritional differences were limited, with secondary findings requiring confirmation.

28 Oct 2026

Ketones may change sleep patterns, but not always for the better

Researchers reviewed animal and human studies and found that ketone bodies may affect sleep stages through energy metabolism and cellular signaling, with the clearest direct evidence involving acetoacetate in mice. They reported mixed human findings and called for controlled studies to separate ketone-specific effects from changes linked to diet, disease, circadian timing, and physiological stress.

28 Oct 2026

Plant and animal proteins show opposite effects on testosterone levels

Higher animal protein intake was associated with lower blood testosterone levels, while higher plant protein intake was associated with higher levels, according to a new study from the University of Eastern Finland.

28 Oct 2026

A loneliness trial puts personalized nature-based support on the research agenda

In a randomized trial involving 320 adults experiencing loneliness, researchers found that loneliness scores declined in both a facilitated nature-based group program and an active signposting group, with no significant difference between them at three months. Neither approach significantly improved health-related quality of life, while exploratory analyses suggested that people with lower emotional wellbeing might benefit more from facilitated group activities.

27 Oct 2026

Low vitamin B12 is linked to heart disease. Supplements tell a different story

A narrative review published in Nutrition Journal examines how vitamin B12 deficiency may contribute to cardiovascular disease through elevated homocysteine, endothelial dysfunction, oxidative stress and altered methylation. The authors found that B12 supplementation has not consistently prevented heart attacks or cardiovascular deaths in clinical trials, although combined B-vitamin therapy may modestly reduce stroke risk, particularly in populations without folic acid fortification.

27 Oct 2026

Most adults with obesity did not meet food noise criteria in US survey

Researchers analyzed responses from 3,646 US adults not currently taking GLP-1 medications to assess persistent, unwanted food-related thoughts using a five-item questionnaire. They found that approximately 4% to 9.5% met questionnaire-based criteria for food noise, with higher scores among younger adults, women, and people in higher BMI categories, while cautioning that no clinically validated threshold exists.

27 Oct 2026

Men with lower testosterone at 31 reported good health 15 years later

Researchers analyzed testosterone concentrations measured at age 31 in 2,691 Finnish men and assessed self-reported health, medical conditions, and quality of life at age 46. Men across testosterone quartiles generally reported good health and excellent quality of life, while differences in metabolic and gastrointestinal conditions lost statistical significance after adjustment for waist circumference.

27 Oct 2026

Updated ASTRO guidelines recommend shorter radiation courses for prostate cancer

An updated clinical guideline from the American Society for Radiation Oncology (ASTRO) provides evidence-based recommendations on the use of hypofractionated radiation therapy for patients with localized prostate cancer.

27 Oct 2026

New alpha-emitting radiopharmaceutical therapy achieves strong responses in advanced prostate cancer

A new alpha-emitting radiopharmaceutical therapy (RPT) for advanced prostate cancer was well tolerated, with no dose-limiting toxicities observed, and showed encouraging signs of antitumor activity, according to a phase 1 trial published in The Journal of Nuclear Medicine's Late-Breaking Fast Track.

26 Oct 2026

Millions get GLP-1 drugs through channels insurance records may miss

Researchers analyzed reports from 9,150 US adults and found that current or previous GLP-1/GIP use rose from 8.2% to 12% between March 2024 and October 2025, largely driven by weight-loss indications. They also estimated that approximately one-third of users obtained treatment through nontraditional channels that standard insurance claims may fail to capture.

26 Oct 2026

Beer and liquor show more oral bacteria links than wine in a large US study

Researchers analyzed beverage intake and oral microbiome data from 5,598 adults across three US cohorts and found that alcohol consumption showed the strongest associations with oral bacterial diversity and composition among the beverages examined. Higher alcohol intake was associated with greater bacterial richness and differences in genera linked to oral health, but the cross-sectional preprint could not establish whether alcohol caused these differences or influenced disease risk.

26 Oct 2026

Study reveals a broad shift away from overtreatment of low-risk prostate cancer

An analysis of United States data reveals a broad shift away from overtreatment of low-risk prostate cancer.

26 Oct 2026

Clues to prostate cancer risk in blood samples taken 15 years earlier

Recent study links blood proteins to aggressive prostate cancer, identifying potential biomarkers for early risk prediction and insights into immune activity.

26 Oct 2026