Research

Mixed

A 10-week multidisciplinary lifestyle intervention significantly improves aerobic fitness, mental health, and cardiovascular risk factors in adults with severe obesity, independent of substantial weight loss.

If you have severe obesity, a structured 10-week program focusing on small dietary changes (600 kcal deficit), regular physical activity, and mental health support can significantly improve your fitness, mood, and heart health, even if you don't lose a lot of weight. The key is consistency and focusing on how you feel and function, not just the number on the scale.

ModerateSupportsMEDIUM confidence
Adults with severe and complicated obesity completing a specialised bariatric lifestyle-modification programme showed significant improvements in self-reported mental health and quality of life, in addition to reductions in cardiovascular risk factors.
John Brazil et al. · Nutrients · 2021

Why this rating

Prospective cohort study with a large sample size (n=877 completers) but no control group, limiting causal inference regarding the intervention's specific efficacy versus natural history or regression to the mean.

Source

Improved Quality of Life, Fitness, Mental Health and Cardiovascular Risk Factors with a Publicly Funded Bariatric Lifestyle Intervention for Adults with Severe Obesity: A Prospective Cohort Study

John Brazil et al. · Nutrients · 2021

DOI 10.3390/nu13114172

cohort · n=1122Cited 17×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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