A large-scale study involving 103,649 UK Biobank participants has revealed that adhering to healthy dietary patterns is significantly associated with lower mortality rates and a longer lifespan. Over a median follow-up of 10.6 years, researchers found that five specific diets—the Alternate Healthy Eating Index-2010, Alternate Mediterranean Diet (AMED), healthful Plant-based […]
Released in early 2026, the latest U.S. Dietary Guidelines champion a “real food” approach, advising Americans to prioritize whole foods like vegetables, fruits, proteins, and healthy fats while sharply limiting ultra-processed items, added sugars, and artificial additives. This update introduces significant shifts, including a higher daily protein recommendation, a move […]
Even moderate alcohol consumption was consistently linked to a higher risk of multiple cancers, with clear dose–response relationships showing that risk rises with greater frequency and quantity of drinking. In this systematic review of 62 U.S.-based studies, alcohol use was most strongly associated with increased risks of breast, colorectal, and […]
A growing body of evidence shows that ultra-processed foods are displacing traditional, whole-food diets worldwide and driving major diet-related chronic diseases. Drawing on decades of dietary surveys, global sales data, cohort studies, randomized trials, and mechanistic research, this first paper in a three-part Lancet Series reports that ultra-processed foods have […]
Ongoing peer-reviewed evidence supports the safety and effectiveness of vaccines against Covid-19, respiratory syncytial virus (RSV), and influenza during the 2025–2026 season. In a systematic review of 511 studies out of 17,263 identified references, Covid-19 mRNA vaccines targeting the XBB.1.5 subvariant showed pooled effectiveness against hospitalization of 46% from cohort […]
The British Dietetic Association has developed the first comprehensive evidence-based dietary guidelines for the management of chronic constipation in adults. Four systematic reviews and meta-analyses encompassing 75 randomized controlled trials informed 59 recommendation statements, developed through the GRADE framework and Delphi consensus among a multidisciplinary Guideline Steering Committee. The recommendations […]
A US longitudinal population-based cohort study suggests that chronic insomnia, especially with reduced sleep, is a risk factor for cognitive decline and adverse brain health in older adults. Researchers followed cognitively unimpaired participants who underwent annual neuropsychological testing and brain imaging (amyloid-PET and MRI for white matter hyperintensities [WMH]) over […]
A Brazilian longitudinal cohort study suggested that consumption of low- and no-calorie sweeteners (LNCSs) was associated with accelerated cognitive decline. A total of 12,772 civil servants (mean age 52 years, 55% women) were followed over three study waves across eight years. Using dietary questionnaires and cognitive testing, researchers found that […]
A prospective cohort study involving 12,134 Chinese adults examined the link between intake of refined carbohydrates, staple foods, and the risk of metabolic dysfunction-associated steatotic liver disease (MASLD). Over a median follow-up of 4.32 years, 4,447 new MASLD cases were identified. Higher total refined carbohydrate intake was associated with increased […]
A randomized controlled crossover trial in England examined the impact of ultraprocessed food (UPF) consumption on weight loss within the framework of national dietary guidelines. Fifty-five adults (BMI 25–40, with habitual UPF intake ≥50% of daily calories) were assigned two 8-week ad libitum diets based on the UK Eatwell Guide: […]