This claim says that most of what we know about how ultra-processed foods affect gut diseases comes from population studies that observe patterns, and most of what we know about food additives comes from lab and animal tests, with very few studies directly testing these effects on humans.

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Evidence from Studies

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Ultra-processed foods and food additives in gut health and disease

Narrative Review

2024 Jun

This study says exactly what the claim does: that research on processed foods mostly comes from population studies, and research on food additives mostly comes from lab or animal tests, with few human experiments for either.

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Ultra-processed foods and food additives in gut health and disease

Score: 1

DOI: 10.1038/s41575-024-00893-5

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