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: […]
A US clinical-pathologic cohort study found that more frequent morning naps were linked to a higher risk of developing Alzheimer’s dementia. Additionally, more naps in the early afternoon and more consistent nap patterns were linked to lower levels of Alzheimer’s pathology. The study analyzed data from 936 older adults (aged […]
A pooled analysis of lifestyle intervention trials suggested that adopting a healthy lifestyle can confer metabolic benefits beyond weight loss (WL) alone. The study investigated how individual responses to long-term lifestyle interventions for WL affect cardiometabolic risk by pooling data from three long-term lifestyle WL-intervention trials with adherence rates of […]
A recent article explored the science and skepticism surrounding seed oils. These oils—extracted from sources such as soy, canola, sunflower, and corn—are rich in unsaturated fats, particularly polyunsaturated fats (PUFAs) like omega-6 linoleic acid. A substantial body of evidence supports the health benefits of replacing saturated fats with PUFAs. However, […]
A study shows that eating a lot of highly processed foods is likely causing a significant number of early deaths around the world. First, a dose–response meta-analysis of observational cohort studies was performed to assess the association between ultraprocessed food consumption and all-cause mortality. Then, an estimation was made for […]
A U.S. randomized clinical trial found that 4:3 intermittent fasting (IMF) led to slightly greater weight loss than daily caloric restriction (DCR) in adults with overweight or obesity. The study included 165 participants (mean age: 42; mean BMI: 34.1 kg/m²; 73.9% female), randomly assigned to either 4:3 IMF (n=84) or […]
A prospective US population-based cohort study suggested that higher intake of butter was associated with increased mortality, while higher intake of plant-based oils was associated with lower mortality. Substituting butter with plant-based oils may prevent premature deaths. There were 221 054 adults with mean age at baseline of 36.1 ~ 56.3 […]