Nutritional research on meat consumption and health

Scientific research continues to examine the relationship between meat consumption and various health outcomes. A study in Nanjing, China, involving over 5,000 elderly residents, found that consuming recommended amounts of meat was associated with a 30% lower risk of frailty, though plant-based diets offer other benefits such as improved heart health and gut microbiome diversity.

In a separate area of inquiry, researchers are addressing the link between processed meat and cognitive health. Discussions have focused on a 2021 University of Leeds study suggesting that consuming two slices of processed meat daily could increase dementia risk by 44 percent. An international review in the ‘Annual Review of Nutrition’ has sought to provide broader context regarding the long-term effects of ultra-processed foods on brain health, noting that the relationship between processed meat and dementia is complex and requires a nuanced understanding.

New findings published in The American Journal of Clinical Nutrition have further explored the link between diet and longevity. Analyzing data from over 5,000 participants, researchers from institutions including Fudan University found that meat consumption is associated with a higher probability of reaching centenarian status, specifically among underweight women. Such women who consumed meat daily were 44 percent more likely to reach age 100 compared to underweight vegetarian women. However, this association was not observed in men or in participants with normal or overweight BMIs, suggesting that nutritional status and energy intake may be critical factors.