Research

Energy balance

High consumption of ultra-processed foods does NOT significantly increase the risk of incident obesity (BMI ≥ 30 kg/m²) in individuals who are already overweight (BMI 25-30 kg/m²) at baseline.

For those already overweight, simply reducing UPF may not be enough to prevent progression to obesity; other lifestyle factors may play a larger role.

GoodRefutesMEDIUM confidence
2 % greater risk (1.02; (0.85, 1.21)) of incident obesity... associations for incident obesity among those overweight at baseline were not statistically significant
Scheine Canhada et al. · Public Health Nutrition · 2019

Why this rating

Longitudinal cohort design, but the specific subgroup analysis showed non-significance.

Source

Ultra-processed foods, incident overweight and obesity, and longitudinal changes in weight and waist circumference: the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

Scheine Canhada et al. · Public Health Nutrition · 2019

DOI 10.1017/s1368980019002854

cohort · n=11827Cited 258×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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 →