Research

Adherence

In the US, higher nutrition knowledge (better discernment of healthy vs. unhealthy foods) is positively associated with higher BMI.

Knowing what is healthy doesn't automatically lead to weight loss. This study found that in the US, people with higher nutrition knowledge had higher BMI, likely because knowledge alone doesn't overcome environmental or social barriers. Don't blame yourself for not losing weight despite knowing the facts. Focus on practical strategies to navigate your environment, not just on learning more about food.

LimitedQualifiesLOW confidence
In the US, BMI was positively associated with... nutrition knowledge (pilot 2: r = 0.2, P = 0.04) scores
Maria Carlota Dao et al. · Current Developments in Nutrition · 2020

Why this rating

Small effect size (r=0.2), small sample, and counter-intuitive nature require cautious interpretation; likely confounded by other variables.

Source

Development of a Questionnaire to Assess the Relationship Between Weight Status and Sociocultural Factors

Maria Carlota Dao et al. · Current Developments in Nutrition · 2020

DOI 10.1093/cdn/nzaa063_023

cross_sectional · n=219
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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