Fish is a source of Omega-3 fatty acids, which helps build cell membranes. Omega-3 is also linked to better cognition.
https://www.medicalnewstoday.com/articles/40253.php
Berries contain antioxidants, which reduce inflammation and stress.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4192974/
Nuts and seeds contain Omega-3 fatty acids, antioxidants, and Vitamin E to protect cells from oxidative stress caused by aging.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276978/
Avocados reduce blood pressure and the risk of cognitive disease.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4109685/
Eggs contain vitamin B-6, vitamin B-12, and folic acid, which delay cognitive decline.
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0012244
Calcium is important for bone growth and decreasing the risk of osteoporosis. Almonds, broccoli, yoghurt, milk, cheese, and salmon are examples of calcium sources.
https://www.aboutkidshealth.ca/article?contentid=1448&language=English