(plant-based diet[tiab] OR vegan diet[tiab] OR vegans[tiab]) AND

“a plant-based meat supplemented diet led to significantly lower TMAO levels, suggesting that replacing red-meat with a plant-based diet may lead to a more favourable metabolic risk profile.”

study authors

A crossover trial of 41 people, six days per arm, real biomarkers but too small and short to call the metabolic picture settled, and weight and a heart-stress marker (NTproBNP) both ticked up on the plant-based arm.

In the brief: Trial finds plant-based meat cuts a heart-risk marker versus red meat → (plant-based diet[tiab] OR vegan diet[tiab] OR vegans[tiab]) AND →

“The healthful plant-based diet was associated with lower risk of dementia, whereas the unhealthful plant-based diet was linked to higher risk.”

study authors

Two cohort-based meta-analyses agree in direction, but heterogeneity between studies is high, and both call for randomized trials to prove cause.

In the brief: Diet quality splits plant-based eaters' dementia risk in two new meta-analyses → (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

Two systematic reviews of prospective cohort and case-control studies, sound design, but observational, so this shows association, not proof of cause.

In the brief: Meta-analysis finds vegan diets cut total cancer risk by 23 percent → (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”

study authors

The evidence is a meta-analysis of seven prospective cohort studies, rated "probable" for total, colorectal, colon and breast cancer under WCRF criteria, though it remains observational.

In the brief: Large meta-analysis ties vegetarian and vegan diets to lower cancer risk across seven sites → (plant-based diet[tiab] OR vegan diet[tiab] OR vegans[tiab]) AND →