Processed Red Meat Consumption Linked to Increased Dementia Risk

A decades-long study ties even small daily amounts of processed meat to higher dementia rates and accelerated cognitive aging, with potential benefits from healthier protein substitutes.

• A 43-year study involving over 133,000 participants found a 13% higher risk of dementia for those consuming at least a quarter serving of processed red meat daily.
• Daily processed meat intake was associated with 1.6 years of accelerated cognitive aging, as measured by cognitive function tests.
• Replacing processed red meat with alternatives like fish, nuts, or legumes can lower dementia risk by up to 28%.
• Potential mechanisms include the impact of processed meat on the gut microbiome, inflammation, and oxidative stress, which may contribute to cognitive decline.
• The study highlights the importance of dietary choices in promoting brain health and suggests incorporating these findings into public health guidelines.

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