Organization · study authors
“digestion-resistant plant protein modulates microbiome metabolism and, together with fiber, supports healthy metabolite profiles associated with plant-based diets”
the study authors
The finding rests on isotope-tracing experiments in mice, not yet a human trial.
In the brief: Scientists find gut bacteria eat the gut lining when fiber runs short → Primary Sources →
“plant-derived myoglobin could achieve protein yields per hectare that rival – or even potentially exceed – those of animal agriculture”
the study's authors
The same trial found tobacco- and lettuce-grown myoglobin at a fraction of animal-muscle concentration and only 35% functional, a lab proof-of-concept rather than a demonstrated yield advantage.
In the brief: Imperial College scientists grow real animal myoglobin in tobacco and lettuce → Green Queen →
“Vegetarian diets compared to non-vegetarian diets are associated with reduced risk of total cancer and seven specific cancer types”
study authors, European Journal of Epidemiology
Pooled from prospective cohort studies; the authors themselves rate the strength of evidence "probable," not proven, since observational data can't establish causation.
In the brief: Vegetarian diets cut cancer risk 13%, vegan diets cut it 23% → (plant-based diet[tiab] OR vegan diet[tiab] OR vegans[tiab]) AND →
“vegetarian diets compared to non-vegetarian diets are associated with reduced risk of total cancer and seven specific cancer types, while vegan diets are associated with reduced risk of total and breast cancer”
study authors, European Journal of Epidemiology
A peer-reviewed systematic review of 17 publications from prospective studies, graded by World Cancer Research Fund criteria as "probable" for vegetarian diets and total, colorectal, colon and breast cancer, and "limited-suggestive" for vegan diets and total and breast cancer specifically.
In the brief: Meta-analysis finds vegan and vegetarian diets cut cancer risk → Requested Evidence →
“Plant-based diets may reduce cancer risk, particularly when they prioritize healthful, minimally processed plant foods”
study authors, European Journal of Nutrition
A peer-reviewed meta-analysis of 19 cohort and 13 case-control studies, observational data that can flag a pattern but can't prove it's the diet doing the causing.
In the brief: Meta-analysis finds only healthful plant-based diets lower cancer risk → (plant-based diet[tiab] OR vegan diet[tiab] OR vegans[tiab]) AND →
The brief quotes each load-bearing claim verbatim, grades it Proven to Overstated, and files it here for good. Get tomorrow morning’s graded claims by email.
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