Diet News and Research

Latest Diet News and Research

Vitamin E intake linked to a key fertility hormone in women trying to conceive

A cross-sectional study of 97 women with infertility found that higher vitamin E intake was associated with lower prolactin levels and smaller hip circumference. Riboflavin and calcium intake were linked to higher muscle mass percentage, but the findings are association-based and need confirmation in longitudinal studies.

26 Apr 2026

Blue Zones longevity claims may rest on flawed records, essay argues

Essay challenges the scientific validity of the Blue Zones concept and Ancel Keys’ Lipid Hypothesis, arguing that both rest on biased data, weak records, and methodological flaws. The authors say some longevity claims may reflect clerical errors, poverty, and unreliable vital records rather than uniquely healthy lifestyles.

26 Apr 2026

Scientists will probe whether processing itself makes ultra-processed foods harmful

A randomized controlled trial protocol will test whether the cardiometabolic risks linked to ultra-processed foods stem from industrial processing, poor nutrient composition, or both. Using four controlled diets, researchers will separate the effects of UPF content from saturated fat, added sugar, and sodium on LDL cholesterol, insulin resistance, and blood pressure.

26 Apr 2026

Ultra-processed foods linked to measurable drops in human attention span

New research from Monash University, the University of São Paulo and Deakin University shows a diet high in heavily processed foods can negatively impact the brain's ability to focus and increases the risk of developing dementia.

25 Apr 2026

Researchers uncover new mechanism linking metabolism, immunity, and skeletal health

Obesity alters bone health not only through increased body weight but also by reshaping the bone marrow environment.

25 Apr 2026

People judge weight loss more harshly when GLP-1 drugs are involved, study finds

In four pre-registered studies across Belgium, the US, and the UK, people judged anti-obesity medication users as putting in less effort and, in turn, viewed them as less moral, competent, warm, and deserving than non-users. The findings suggest that effort moralization may help drive stigma around GLP-1-based weight-loss treatment, even when medication is used alongside diet and exercise.

23 Apr 2026

Study identifies new genetic pathways driving cardiometabolic disease risk

A study published today in PLOS Medicine has identified two new genetic pathways that contribute to cardiometabolic disease, which includes heart disease, obesity and diabetes.

23 Apr 2026

Real-time CGM transforms blood glucose management in type 2 diabetes

A major clinical trial has found that real-time continuous glucose monitoring (CGM) significantly improves blood glucose management in adults living with type 2 diabetes who are treated with basal insulin.

23 Apr 2026

Microplastics in the liver may drive global liver disease rates

There is considerable evidence that microplastics and nanoplastics are present in the livers of humans, and wild animal populations on land and in the ocean.

23 Apr 2026

Legume and soy consumption may improve COPD symptoms

Consuming legumes and soy-based foods may help improve symptoms of chronic obstructive pulmonary disease (COPD) by reducing inflammation and irritation, according to a new study in the March 2026 issue of Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation, a peer-reviewed, open access journal.

23 Apr 2026

Why social supermarkets are gaining attention in the fight against food insecurity

This scoping review found that social supermarkets can offer a more dignified, choice-based way to access lower-cost food while also helping divert some surplus food from waste. However, the evidence suggests they work best as a complement to existing food support, not as a solution to the underlying causes of food insecurity or overproduction across the food system.

22 Apr 2026

Study links common herbicide to rising early-onset colorectal cancer risk

Researchers used DNA methylation-based “epigenetic fingerprints” as proxies for lifelong exposome-related patterns and found that early-onset colorectal cancer was associated with lower Mediterranean diet adherence, lower education, smoking-related signatures, and higher picloram-related exposure signals. They then supported the picloram association in nine independent cohorts and with 21 years of US county-level pesticide-use data, while noting that the findings show association rather than proof of causation.

22 Apr 2026

Low-plastic diets cut plastic-linked chemicals in urine within 7 days, study finds

A Nature Medicine study found that healthy Australian adults were widely exposed to plastic-associated chemicals, with processed, packaged, and canned foods emerging as important modifiable contributors to urinary phthalate and bisphenol levels. In a 7-day pilot randomized trial, low-plastic food interventions reduced several urinary plastic-associated chemicals without lowering daily energy intake.

22 Apr 2026

Gut microbiome characteristics predict treatment response in IBS-D patients

In a new study published in Clinical Gastroenterology and Hepatology, the low FODMAP diet and the antibiotic rifaximin provided similar and significant relief for patients with irritable bowel syndrome with diarrhea (IBS-D).

22 Apr 2026

Prediabetes leaves lasting fat tissue changes after bariatric surgery

Prediabetes may leave a lasting molecular "footprint" on adipose (fat) tissue which appears to make maintaining weight loss after bariatric surgery more difficult, according to new research being presented at this year's European Congress on Obesity (ECO) in Istanbul, Turkey (12-15 May).

22 Apr 2026

Gut microbiome clues may help spot Parkinson’s disease in its earliest phase

Researchers found that a Parkinson’s disease-related gut microbiome pattern appears not only in people with diagnosed Parkinson’s, but also in some non-manifesting GBA1 variant carriers and a subset of healthy individuals. The findings suggest that gut microbiome changes may help flag people who are closer to Parkinson’s disease development, although longitudinal studies are still needed to confirm predictive value.

21 Apr 2026