Obesity

Overweight and obesity are defined by the WHO as abnormal or excessive fat accumulation that presents a risk to an individuals health.

Overweight and obesity are major risk factors for a number of chronic diseases, including diabetes, cardiovascular diseases and cancer and while it was once an issue only in high income countries, overweight and obesity has now dramatically risen in low- and middle-income countries.Such countries are now facing a "double burden" of disease, for while they continue to deal with the problems of infectious disease and under-nutrition, they are also experiencing a rapid upsurge in chronic disease risk factors such as obesity and overweight, particularly in urban settings.

What is Obesity?

Obesity and overweight have in the last decade become a global problem - according to the World Health Organization (WHO) back in 2005 approximately 1.6 billion adults over the of age 15+ were overweight, at least 400 million adults were obese and at least 20 million children under the age of 5 years were overweight.

Obesity and Arthritis

Obesity and Cancer

Obesity and Blood Pressure

Causes of Obesity and Overweight

Obesity and Sleep

Obesity and Anesthesia

Obesity and Genetics

What does Sleeve Gastrectomy Involve?

Obesity and Stress

Obesity Management

Obesity and Fractures

See more featured articles »

Obesity and Infertility

Obesity and Depression

Obesity and Exercise

Obesity, What Can be Done?

Obesity and Hormones

What is Body Mass Index (BMI)?

Obesity in Adults

Obesity and Skin Problems

Obesity and Autism

What is Obesity Paradox?

Obesity and Sexual Health

Obesity in Pregnancy

Why is Visceral Fat Dangerous?

Fat Mass and Obesity-Associated Gene (FTO)

Obesity and Diabetes

Obesity Epidemiology

Obesity in Children

Obesity and Metabolic Syndrome

Obesity and Respiratory Disorders

Dieting for Obese Children

Obesity and Heart Disease

Abdominal Obesity and the Metabolic Syndrome

Obesity and Fast Food

Obesity and Periodontitis

Latest Obesity News and Research

New pathway enhances brown fat thermogenesis and metabolic health

Researchers have determined how a key protein activates brown fat by expanding blood vessels and nerves in the heat-generating tissue.

25 Mar 2026

Eating more dairy and calcium may lower metabolic syndrome odds

Research links higher dietary calcium and dairy consumption to reduced odds of metabolic syndrome, highlighting potential dietary interventions for health.

25 Mar 2026

Wholegrain rye changes gut bacteria and lowers inflammation in obesity trial

In a 12-week randomized trial, replacing refined wheat with wholegrain rye in a calorie-restricted diet did not produce greater weight loss in adults with overweight or obesity. Wholegrain rye did, however, lower C-reactive protein and alter gut microbiota and short-chain fatty acids in ways that may have positive cardiometabolic implications.

24 Mar 2026

Insilico and ASKA partner to advance AI-driven gynecological drug discovery

Insilico Medicine (3696.HK), a clinical-stage drug discovery and development company driven by generative artificial intelligence (AI), today announced a strategic research collaboration with ASKA Pharmaceutical Co., Ltd. ("ASKA"), a specialized pharmaceutical company with a strong focus on internal medicine, obstetrics, and gynecology.

24 Mar 2026

Medicare reforms improve medication adherence among older adults with heart disease

Medicare beneficiaries with heart disease or major cardiovascular risk factors reported less cost-related medication non-adherence-skipping or reducing doses, delaying prescription fills or foregoing medications due to cost-after new provisions went into effect limiting out-of-pocket drug costs for Medicare beneficiaries, according to a study being presented at the American College of Cardiology's Annual Scientific Session (ACC.26) and simultaneously published in JACC, the flagship journal of the ACC.

24 Mar 2026

Leaving home may worsen diet quality in young adults, Australian study finds

Australian longitudinal data suggest that leaving the parental home is associated with a small decline in overall diet quality and a short-term rise in discretionary food intake during the transition from adolescence to adulthood. The study also found that diet quality tended to worsen most among those moving in with a partner, while the discretionary-food gap narrowed over time.

23 Mar 2026

Multiple sclerosis prevalence in England doubles due to better diagnosis

Multiple sclerosis (MS) has more than doubled in recorded prevalence in England from 2000 to 2020, increasing by 6% per year, largely due to improved diagnosis and longer life expectancy, finds a new study by University College London (UCL) and Imperial College London researchers.

23 Mar 2026

Early obesity treatment reduces long-term health risks for all children

Children living with obesity but showing no signs of metabolic complications still have a significantly increased risk of developing type 2 diabetes, high blood pressure, and abnormal blood lipid levels later in life.

23 Mar 2026

Early adulthood hypertension linked to heart and kidney disease later in life

Higher blood pressure during young adulthood is likely linked to a higher risk of heart disease and kidney disease later in life, reinforcing the importance of maintaining healthy blood pressure at younger ages, according to preliminary research presented at the American Heart Association's EPI|Lifestyle Scientific Sessions 2026.

23 Mar 2026

Replacing sedentary time improves insulin resistance in adolescents

Adolescents who replaced just half an hour of sedentary behaviors, such as sitting on the couch or spending time at the computer, each day for moderate-to-vigorous physical activity or sleep may lower their insulin resistance, a key factor in preventing the development of Type 2 diabetes, according to preliminary research presented at the American Heart Association's EPI|Lifestyle Scientific Sessions 2026.

23 Mar 2026

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

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

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

New compound targets the neuronal epigenome to treat Alzheimer's disease

A team from the University of Barcelona has designed and validated in animal models an innovative compound with a pioneering mechanism of action for the treatment of Alzheimer's disease.

19 Mar 2026

Early morning workouts may improve cardiometabolic health

People who regularly exercised early in the morning were significantly less likely to have coronary artery disease, high blood pressure, Type 2 diabetes or obesity compared with people who exercised later in the day, according to a study being presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

19 Mar 2026

GLP-1 medications linked to reduced psychiatric hospital visits

GLP-1 medications used to treat diabetes and obesity were associated with a reduced need for hospital care and sickness absence due to psychiatric reasons, a new study shows.

18 Mar 2026

Obesity in childhood may limit future income and opportunities

Childhood obesity may be quietly undermining one of the central promises of American life.

18 Mar 2026

Early menopause linked to higher lifetime heart disease risk

Women who enter natural menopause before age 40 face about a 40% higher lifetime risk of developing coronary heart disease than women who experience menopause later, according to a large Northwestern Medicine study that is the first to calculate lifetime heart risk associated with premature menopause.

18 Mar 2026