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

	Men's Health
	The latest men's health news from News Medical

	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.

	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.

	Tailoring prostate cancer radiotherapy to body clock could cut long-term side effects A study by Leicester researchers shows that the timing of radiotherapy treatment may be as important as how it is given for prostate cancer patients.

			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 type of fiber you eat shapes how gut bacteria feed and work together A 2021 review examined how the chemical structure and physical properties of dietary fiber influence which gut bacteria can break it down and how microbial species compete and cooperate during fermentation. The authors described how these interactions contribute to short-chain fatty acid production, while emphasizing the need for further research involving intact plant foods to understand their implications for human health.

	Eating walnuts was linked to higher IgG levels, but what does that mean for health? A two-year randomized trial involving 474 older adults found that daily consumption of 30–60 grams of walnuts was associated with 6% higher total serum IgG concentrations compared with a control diet, with an 11% difference observed among US participants. Walnut consumption did not significantly affect IgM, MDA-LDL or MDA-LDL-specific antibodies, and whether the modest IgG difference has meaningful cardiovascular benefits remains unknown.

	Extreme heat and cold hit some people far harder, and it's not just about illness Researchers analysing 285,444 adults in Finland and the UK found that excess mortality associated with extreme heat and cold was more than tenfold higher among people with both pre-existing medical conditions and socioeconomic disadvantage than among those with neither or only one vulnerability.

	Testosterone shows no evidence of improving menopausal brain fog Published in Reproduction and Fertility, the review examined five existing studies of women aged 41 to 65 to understand whether testosterone treatment improves thinking and memory in women during and after menopause.

	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.

	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.

	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.

	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.

	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.

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