Older adults who consume higher amounts of dietary copper perform better in memory and attention tests, according to research published in the journal Scientific Reports. The study evaluated data from 2,420 Americans aged over 60 to examine how the trace element affects cognitive health.
As reported by Portal.abczdrowie.pl, participants consuming between 1.2 and 1.6 milligrams of copper per day showed superior results in tests assessing memory, concentration, and word retrieval speed compared to those with lower intake.
The strongest link between copper intake and brain health appeared among individuals who had previously suffered a stroke. In this group, higher consumption of the mineral was linked to better overall cognitive status and greater protection against dementia.
However, researchers noted that more is not always better. Exceeding approximately 1.6 milligrams per day provided no further performance improvements in cognitive testing. The publication noted that both a deficiency and an excess of copper can disrupt normal bodily functions.
Role of copper in brain function
Copper plays an essential role in maintaining normal nervous system operations and defending against cognitive decline. According to the publication, the microelement participates in the synthesis of neurotransmitters, the formation of the myelin sheath around nerve fibers, and the protection of nerve cells from oxidative stress.
Scientific Reports is a peer-reviewed, open-access journal covering natural and clinical sciences. Dementia refers to a group of conditions characterized by impairment of brain functions, such as memory and reasoning, severe enough to affect daily life.
Dietary sources of copper
The study authors highlighted several rich food sources of copper, led by organ meats, particularly liver. Seafood, nuts, cocoa, and dark chocolate also supply high amounts of the element. Additional good sources include whole grains, mushrooms, cheeses, tomatoes, avocados, bananas, and plums.
Organ meats and seafood are widely recognized in nutrition as nutrient-dense foods providing bioavailable trace minerals. Trace elements are chemical elements required by living organisms in minute amounts to maintain physiological health.
Combating brain inflammation
Additional reporting from news outlet UNIAN noted dietitian recommendations on protecting long-term brain health. Dietitians stated that scientific evidence identifies brain inflammation as the primary cause of cognitive decline.
To counter inflammatory damage, nutrition experts advise adding plant-based protein sources with anti-inflammatory properties to the daily diet. Specific foods recommended for brain protection include walnuts, black beans, and chia seeds.
