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U.S. study links ultra-processed foods to lower odds of fertility

A cross-sectional NHANES study of 2,582 U.S. women found that higher ultra-processed food intake was associated with lower odds of being classified as fertile based on self-reported infertility history. Greater Mediterranean diet adherence was linked to higher odds of fertility in adjusted models, but that association was no longer significant after accounting for obesity.

22 Mar 2026

Oral semaglutide fails to slow early Alzheimer’s decline in two phase 3 trials

Two large phase 3 trials found that oral semaglutide 14 mg did not slow cognitive or functional decline over 104 weeks in people with early symptomatic, amyloid-positive Alzheimer’s disease. Semaglutide was generally consistent with its known safety profile and showed some biomarker changes, but these did not translate into clinical benefit.

22 Mar 2026

GLP-1 drugs cut heart and kidney risks in type 1 diabetes study

In a large target trial emulation of 174,678 people with type 1 diabetes, GLP-1 receptor agonist initiation was associated with lower risks of major cardiovascular events and end-stage kidney disease over five years. The study also found no increased risk of hospitalization for diabetic ketoacidosis or severe hypoglycemia, supporting further randomized trials of GLP-1RAs as adjunctive therapy in type 1 diabetes.

22 Mar 2026

Study finds addiction risk tied to reward and impulse genes

Most of the genetic risk for developing a substance use disorder comes from genes that broadly affect how our brains process rewards, regulate impulses and weigh consequences – not from genes that specifically influence substance use disorder or any single drug.

22 Mar 2026

Losing health insurance worsens diabetes outcomes in low-income adults

Losing health insurance can quickly worsen health for people with diabetes as patients struggle to control the disease after coverage is interrupted, according to new research from Oregon Health & Science University,

22 Mar 2026

Hepatitis C drug may prevent hepatitis E virus replication

A drug that is already in clinical trials against hepatitis C virus can also prevent hepatitis E virus from replicating.

22 Mar 2026

‘How low can you go?’ The shifting guidelines for blood pressure control

The patient initially came to see Mark Supiano in 2017 because her family was concerned about her short-term memory loss.

20 Mar 2026

Oz escalates Medicaid fraud claims against states after focus on Minnesota

The Trump administration has signaled a willingness to halt billions of dollars in federal health payments to multiple states, mirroring moves they made against Minnesota.

20 Mar 2026

AI diet plans underestimate teen nutrition and miss key nutrients

AI tools for adolescent diet planning may fall short, consistently underestimating nutrient intake and energy needs compared to individualized dietitian plans.

20 Mar 2026

Global warming could increase inactivity and premature death

The impact of climate change on physical activity patterns poses serious health risks and economic challenges, particularly for low- and middle-income nations.

20 Mar 2026

Do artificial sweeteners increase appetite or food intake?

The study evaluates artificial sweeteners' role in appetite regulation, showing no significant effects on hunger or energy intake during weight management.

20 Mar 2026

Study links gut microbiome imbalance to worsening kidney disease

Researchers at UC Davis School of Medicine have uncovered how an imbalanced gut microbiome escalates the production of metabolic byproducts by certain gut bacteria.

19 Mar 2026

Mandated caps reduce insulin out-of-pocket costs among US Medicare beneficiaries

A new analysis led by researchers at the Johns Hopkins Bloomberg School of Public Health finds that out-of-pockets caps on insulin for Medicare Part D beneficiaries have reined in insulin prices.

19 Mar 2026

Balancing sitting and movement may lower the risk for hypertensive disorders of pregnancy

During pregnancy, women can reduce their risk of developing a hypertensive disorder by nearly 30% by limiting sedentary time to no more than eight hours a day and increasing light, everyday physical activity to at least seven hours a day, according to preliminary research presented at the American Heart Association's EPI|Lifestyle Scientific Sessions 2026.

19 Mar 2026