 This study found that higher levels of carotenoids such as alpha-carotene in the blood were associated with better global cognition scores in a US population at risk for cognitive decline. This suggests that eating more fruits and vegetables could help protect against cognitive decline. Additionally, higher levels of lutein and sexanthin, two carotenoids found in dark, leafy greens, were linked to improved semantic memory scores. This article was authored by Siarann Liu, Claude Yandonna, Jeremy D. Fotodo, and others.