Peer-reviewed study
Ultra-processed foods can make overeating easier
Ultra-processed foods cause weight gain and increased energy intake associated with reduced chewing frequency: A randomized, open-label, crossover study
Source details
PubMed-linked study details.
- Authors
- Hamano et al.
- Journal
- Diabetes, Obesity and Metabolism. 2024.
- Identifiers
- PMID 39267249 · DOI 10.1111/dom.15922
Honest limits
What this study does not prove.
Not every packaged food causes fat gain. Food texture, energy density, protein, fiber, and the rest of your diet all matter.
Kris's practical takeaway
Here's what to do with it.
The practical move is not purity. It is to notice which foods make calories disappear too easily and build meals that require more chewing, protein, and fullness.
Ways to use it
Safe ways to apply it.
Some foods make the deficit harder
Chewing and fullness are part of nutrition
Change your food setup without labeling foods good or bad
Related questions
Questions this research helps answer.
Food environment answer
Do ultra-processed foods make fat loss harder?
They can. The issue is not food morality. Some ultra-processed foods are easier to eat quickly, easier to overconsume, and less filling for the calories. That can make a deficit harder to maintain.
Fiber and fullness answer
Does fiber help with satiety?
Fiber can help meals feel more filling, but it is not magic by itself. The practical fat-loss move is to combine protein, fiber, water, and slower eating into default meals that reduce the need for willpower later.
Eating speed answer
Does eating speed matter for fat loss?
Yes, it can matter because fast, low-chew meals can let calories outrun fullness. The point is not to eat perfectly clean; it is to build meals that slow the process enough for hunger and portions to register.
Related guides and studies
Keep learning about nutrition.
FAQ
Quick questions
What is the practical takeaway from this study?
The practical move is not purity. It is to notice which foods make calories disappear too easily and build meals that require more chewing, protein, and fullness.
What does this study not prove?
Not every packaged food causes fat gain. Food texture, energy density, protein, fiber, and the rest of your diet all matter.
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