Red meat could raise dementia risk, researchers claim: Experts react

While red meat is known for being a rich source of protein, iron, and other essential nutrients, a recent study has linked it to an increased risk of dementia. Researchers from the Harvard T.H. Chan School of Public Health and Mass General Brigham found that daily consumption of certain amounts of processed red meats could increase the risk of developing dementia by 13%. Additionally, it was associated with a 14% higher risk of subjective cognitive decline and faster brain aging.

Lead study author Yuhan Li stated that the results were in line with their hypothesis, showing that a higher intake of red meat, particularly processed red meat, is linked to an increased risk of developing dementia and worse cognition. The study, which included over 130,000 individuals over a four-decade span, found that replacing one serving of processed red meat per day with nuts, legumes, or fish could reduce dementia risk by up to 28%.

However, some experts have cast doubt on the findings, noting that the study was observational and may not provide conclusive evidence. Dr. Marc Siegel warned that red meat could potentially lead to weight gain, obesity, and inflammation, all of which are risk factors for dementia. Theresa Gentile, a registered dietitian nutritionist, highlighted previous research linking red meat to an increased risk of type 2 diabetes and cardiovascular disease, both of which are related to impaired cognitive health.

Other experts suggested that the risk may be more closely linked to ultraprocessed foods in general rather than specific meats. Heather M. Snyder, Ph.D., of the Alzheimer’s Association, emphasized the importance of a balanced diet with less processed foods to reduce the risk of cognitive decline.

While the study provides valuable insights into the potential link between red meat consumption and dementia, more research is needed to confirm these findings. In the meantime, experts recommend limiting processed red meat intake and incorporating healthier protein alternatives like fish, nuts, legumes, and chicken into the diet. A balanced diet rich in fruits, vegetables, whole grains, and healthy fats can also help support brain health and reduce the risk of cognitive decline.