Research
Adherence
Behavioral support and exercise significantly modify weight loss outcomes, with behavioral support being particularly impactful at 6 months and exercise becoming more impactful at 12 months.
Don't rely on diet alone. Add structured behavioral support (like counseling or group meetings) early on, and incorporate regular exercise. These factors become increasingly important for maintaining weight loss after the first 6 months.
ModerateSupportsMEDIUM confidence
Between 6- and 12-month follow-up, the influence of behavioral support... and exercise... on weight loss differed.
Why this rating
Based on meta-regression of included RCTs; confidence rated moderate to low by GRADE.
Source
Comparison of Weight Loss Among Named Diet Programs in Overweight and Obese Adults
Bradley C. Johnston et al. · JAMA · 2014
DOI 10.1001/jama.2014.10397
Meta-analysis · 48 studiesCited 695×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
Related findings · Adherence
- Regular physical activity (at least 150 minutes/week of moderate-intensity) reduces all-cause and cardiovascular mortality by 20-30% and lowers the risk of type 2 diabetes by 25-35%.Strong
- Increasing physical activity from a sedentary lifestyle to an active one in middle adulthood significantly reduces the risk of coronary events compared to remaining sedentary.Strong
- Resistance exercise is the only intervention capable of consistently restoring muscle function and strength in sarcopenia, partially overcoming age-related anabolic resistance.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →