31 Jan 2023 --- A new study reveals a significant link between a higher intake of the trace minerals copper and iron, and cognitive decline. Yet, the researchers hold that further studies must be conducted to confirm their initial findings. The study evaluated dietary consumption of four trace minerals – iron, copper, zinc and manganese. Though manganese and zinc show no correlation – either negative or positive on cognitive ability – elevated amounts of dietary iron and copper are associated with “worse cognitive function.”
