Iron is an essential mineral for the body, but too much can accumulate in the brain, linked to cognitive issues. Researchers from the University of Kentucky found that certain nutrients may help lower iron buildup in the brain, potentially lowering a person’s risk for cognitive decline.
The body mainly uses iron to create hemoglobin, which carries oxygen to other areas of the body. However, as we age, too much iron can accumulate in the brain, leading to neurodegenerative diseases such as Alzheimer’s. To prevent this, researchers focused on non-heme iron, found in plant and animal products.
According to Valentinos Zachariou, PhD, assistant professor at the University of Kentucky, “Iron is a vital element for brain health, playing a key role in essential cellular functions.” However, too much unbound iron can disrupt cellular processes and damage neurons. The study found that participants with higher antioxidant intake presented less brain iron accumulation.
The researchers followed 72 older adults over three years to measure brain iron levels using an MRI technique. They also examined the participants’ diets and cognitive performance. The scientists found that iron accumulation in specific brain regions was linked to declines in episodic memory and executive function. However, those with higher antioxidant intake presented less brain iron accumulation.
The study suggests that dietary choices may influence brain iron accumulation and cognitive decline. Monique Richard, MS, RDN, LDN, FAND, IFNCP, RYT, a registered dietitian nutritionist, recommends incorporating fresh produce daily to provide essential nutrients and antioxidants. She advises monitoring heme and non-heme sources of iron intake to prevent excessive amounts.
Adequate nutrition, combined with brain-stimulating activities, regular sleep, exercise, social interaction, and stress management, is crucial for cognitive health. The researchers plan to identify specific nutrients that may mitigate the effects of age-related brain iron accumulation on cognition. A randomized clinical trial will be conducted to test the impact of targeted nutritional interventions on brain iron accumulation and cognitive function in older individuals.
Source: https://www.medicalnewstoday.com/articles/antioxidant-vitamin-rich-diet-may-reduce-risk-iron-buildup-cognitive-decline-aging