Research

Energy balance

Ultra-processed foods cause increased energy intake and weight gain even when matched for macronutrients and energy content, compared to unprocessed foods.

Avoid ultra-processed foods. Even if they have the same calories and macros as whole foods, you will likely eat more and gain weight. Focus on whole, unprocessed foods to naturally regulate intake.

GoodSupportsMEDIUM confidence
Ultra-processed food consumption led to substantially greater energy intake (+2090 kJ/day [+500 kcal/day] on average over 14 days) and weight gain (+0.9 kg over 14 days vs weight loss of equal magnitude during the 14 days of the unprocessed diet phase).
Nita G. Forouhi · Diabetologia · 2023

Why this rating

Based on a small RCT (n=20) but with controlled conditions.

Source

Embracing complexity: making sense of diet, nutrition, obesity and type 2 diabetes

Nita G. Forouhi · Diabetologia · 2023

DOI 10.1007/s00125-023-05873-z

narrative_reviewCited 59×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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