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, What Can be Done?

Obesity and Heart Disease

Obesity Management

Obesity and Exercise

Obesity and Depression

Obesity Epidemiology

Obesity and Arthritis

Obesity in Pregnancy

Obesity and Metabolic Syndrome

Obesity and Hormones

Obesity and Periodontitis

See more featured articles »

Obesity and Skin Problems

Why is Visceral Fat Dangerous?

Abdominal Obesity and the Metabolic Syndrome

Dieting for Obese Children

Obesity and Genetics

Causes of Obesity and Overweight

Obesity and Fast Food

Obesity in Adults

Obesity and Blood Pressure

Obesity and Respiratory Disorders

Obesity in Children

Obesity and Cancer

What does Sleeve Gastrectomy Involve?

Obesity and Sleep

Obesity and Sexual Health

Fat Mass and Obesity-Associated Gene (FTO)

What is Obesity Paradox?

Obesity and Anesthesia

Obesity and Infertility

Obesity and Stress

What is Body Mass Index (BMI)?

Obesity and Fractures

Obesity and Diabetes

Obesity and Autism

Latest Obesity News and Research

Low birthweight increases stroke risk independent of adult BMI

In new research to be presented at this year's European Congress on Obesity (ECO2026) in Istanbul, Turkey (12-15 May), researchers show an increased risk of stroke in young adulthood for children of low birthweight, independent of their body mass index (BMI) as young adults or gestational age at birth.

3 Apr 2026

Semaglutide for weight loss was linked to a sharp drop in alcohol use in this case report

A 2026 case report describes a 34-year-old man with obesity and alcohol use disorder whose semaglutide treatment for weight loss was associated with a marked drop in drinking over 10 months, with his AUDIT score falling from 27 to 7 and alcohol use dropping from about 15 drinks per week to half a beer per month. The authors frame this as a promising but preliminary finding that adds to growing evidence on GLP-1 drugs and alcohol use, while also stressing that this was a single case and that better AUD screening in family medicine remains important.

2 Apr 2026

Sleep apnea raises risk of cardiovascular events and death

New research to be presented at this year's European Congress on Obesity (ECO 2026, Istanbul, Turkey, 12-15 May) shows that those living with obstructive sleep apnea (OSA) have a 71% higher risk of cardiovascular events (CVEs) or death from any cause (all-cause mortality) compared with those not living with OSA.

2 Apr 2026

Obesity, sleep, smoking, and inactivity show the strongest links to hypertension in U.S. adults

A cross-sectional analysis of 20,912 U.S. adults found that obesity, overweight, inadequate physical activity, smoking, and short or long sleep were each associated with higher odds of hypertension, while overall diet quality by HEI-2015 was not significantly associated. Sleep associations differed by sex, and lower sodium intake remained linked to lower odds of hypertension in sensitivity analyses.

2 Apr 2026

Occasional heavy drinking poses major risk to liver health

People may assume that if they drink lightly during the week or month, heavy drinking on the occasional Friday or Saturday may not cause their liver harm.

2 Apr 2026

New obesity definition may delay treatment and complicate diagnosis

Redefining obesity based not only on body mass index (BMI) but on whether excess body fat is causing measurable health problems may complicate diagnosis and delay treatment, according to an Endocrine Society guideline communication published in The Journal of Clinical Endocrinology & Metabolism.

2 Apr 2026

American Heart Association's 9 diet rules to lower heart disease risk

The AHA's dietary guidance emphasizes food choices over fad diets to reduce heart disease risk and improve cardiovascular health across all life stages.

2 Apr 2026

Wegovy® (semaglutide injection) 2.4 mg recommended by NICE to reduce risk of major adverse cardiovascular events, including heart attacks and strokes, in adults with established cardiovascular disease and overweight or obesity (BMI ≥ 27 kg/m2)

NICE has recommended Wegovy® (semaglutide injection) 2.4 mg as the first GLP-1 RA to reduce the risk of major adverse cardiovascular events (cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke) in adults with established cardiovascular disease and either obesity or overweight (BMI ≥ 27 kg/m2).

From Novo Nordisk 2 Apr 2026

Walking remains most popular activity despite low guideline adherence

In a study of U.S. adults, walking was, by far, the most popular leisure-time physical activity, while rural residents also enjoyed gardening, hunting and fishing, and urban residents more commonly reported running, weightlifting and dance. Urban residents were more likely than rural residents to meet physical activity guidelines.

1 Apr 2026

Antibiotic use before and during pregnancy linked to psychological distress

Perinatal depression, which occurs during pregnancy or in the period after childbirth, is one of the most common mental health conditions experienced by women.

1 Apr 2026

Boosting retail sales and nutrition through entrance-level produce displays

Placing fruit and vegetable sections near supermarket entrances increases the amount purchased and may improve the quality of women's diets, according to a new study funded by the National Institute for Health and Care Research (NIHR).

1 Apr 2026

Fiber supplement stabilizes blood sugar in gestational diabetes

Dietary fiber supplementation shows potential in managing blood sugar levels and preventing preterm births in pregnancies at risk for gestational diabetes.

1 Apr 2026

Imaging study measures pancreatic fat in children and teens

Higher fat content in the pancreas of children and adolescents with obesity is associated with an increased level of heart and metabolic risk factors, including higher than average body mass index (BMI), elevated diastolic blood pressure, higher levels of abdominal and liver fat, and insulin resistance, according to new research presented at this year's European Congress on Obesity (ECO) in Istanbul, Turkey (12-15 May).

1 Apr 2026

Gut-derived metabolites regulate immune cells in complex ways

Published on March 23, 2026, in Volume 2, article number 18 of the journal Immunity & Inflammation, the review begins by systematically outlining the sources and synthetic pathways of immune-relevant microbial metabolites, including bile acids, short-chain fatty acids, amino acid derivatives, vitamins, trimethylamine/trimethylamine N-oxide, and odd-chain fatty acids.

31 Mar 2026

How swapping unhealthy foods can significantly reduce your heart risk

More than half of adults and about 60% of children in the U.S. have unhealthy diets, which can contribute to higher rates of health factors such as high blood pressure and obesity, and lead directly to poor health outcomes including deaths from cardiovascular disease and other chronic conditions, according to the American Heart Association.

31 Mar 2026

ACLM launches project remission for Type 2 diabetes

The American College of Lifestyle Medicine (ACLM) announces the launch of Project Remission: A Lifestyle Medicine Approach to Type 2 Diabetes, a national digital film series developed in partnership with Content With Purpose (CWP).

31 Mar 2026

How gut imbalance may drive obesity, diabetes, and heart disease

A new review argues that gut dysbiosis is closely linked to metabolic dysfunction through intertwined effects on inflammation, oxidative stress, gut barrier integrity, microbial metabolites, and epigenetic regulation. It also highlights microbiome-targeted strategies such as high-fiber diets, probiotics, prebiotics, postbiotics, exercise, and fecal microbiota transplantation as promising ways to support metabolic health.

30 Mar 2026

How do diet, smoking, alcohol, and stress reshape the female microbiome?

This review examines how modifiable lifestyle and environmental factors shape the female vaginal, gut, oral, and skin microbiomes, with diet, alcohol, smoking, obesity, stress, hygiene, physical activity, and sexual behaviours all linked to site-specific microbial shifts. It argues that understanding these patterns could help guide future female-focused prevention and intervention strategies.

30 Mar 2026

Modern lifestyle amplifies genetic risk for type 2 diabetes

Some people have a greater genetic risk than others of developing type 2 diabetes. Now, more of these at-risk people are actually developing diabetes than previously.

30 Mar 2026

Time-restricted eating improves hormone levels in women with PCOS

Polycystic ovary syndrome, or PCOS, affects as many as 18% of all childbearing-age women. The condition occurs when a woman's body produces too much of a group of hormones called androgens, chiefly testosterone. Menstrual irregularity, obesity and even infertility can result.

30 Mar 2026