Research

Adherence

Higher time discounting (a preference for immediate rewards over delayed benefits) is positively associated with unhealthy diets, overweight, and obesity.

If you find yourself choosing unhealthy food despite wanting to be healthy, it may not just be a lack of willpower. Your brain might be 'discounting' the future health benefits too heavily in favor of immediate taste. To counter this, make healthy choices easier and more immediate (e.g., pre-prepared meals) and make unhealthy choices harder to access.

ModerateSupportsMEDIUM confidence
Overall, there is moderate evidence that high time discounting is a significant risk factor for unhealthy diets, overweight and obesity and may serve as an important target for intervention.
Pepita Barlow et al. · Obesity Reviews · 2016

Why this rating

The review finds 'moderate evidence' based on 41 studies, but notes methodological heterogeneity and a lack of high-quality longitudinal/experimental designs.

Source

Unhealthy diets, obesity and time discounting: a systematic literature review and network analysis

Pepita Barlow et al. · Obesity Reviews · 2016

DOI 10.1111/obr.12431

systematic_reviewCited 183×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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