Research
Mixed
A significant portion of deaths related to high BMI occur among individuals who are not clinically obese (BMI < 30 kg/m2), indicating that overweight status (BMI 25-29.9) also carries substantial mortality risk.
You do not need to be obese to face increased health risks. Being overweight (BMI 25-29.9) accounts for a large portion of deaths related to high body weight. Aim for a BMI in the 20-25 range to minimize mortality risk.
StrongQualifiesVERY_HIGH confidence
High BMI accounted for 4.0 million (2.7- 5.3) deaths globally, nearly 40% of which occurred among non-obese.
Why this rating
Based on the same robust GBD dataset.
Source
Health Effects of Overweight and Obesity in 195 Countries over 25 Years
The GBD 2015 Obesity Collaborators · New England Journal of Medicine · 2017
DOI 10.1056/nejmoa1614362
cohort · n=67800000Cited 7,907×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- High body mass index (BMI) is a causal risk factor for a broad spectrum of chronic diseases, including cardiovascular disease, diabetes, chronic kidney disease, multiple cancers, and musculoskeletal disorders, resulting in significant global mortality and disease burden.Strong
- Cardiovascular disease is the primary cause of death associated with high BMI, accounting for more than two-thirds of high-BMI-related deaths.Strong
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
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