Higher intake of a plant-based diet index rich in healthier plant foods was associated with slower cognitive decline. This supports current recommendations to shift to diets rich in healthy plant foods, with lower intake of less healthy plant and animal foods.
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A potential effect of plant-based diets on mortality rate remains controversial: large epidemiological studies like the Adventist studies (n = 22,000−96,000) show a link between plant-based diets, lower all-cause mortality and cardiovascular diseases6,7, while other studies like the EPIC-Oxford study and the “45 and Up Study” (n = 64,000−267,000) show none8,9.