doi: 10.1016/j.pneurobio.2004.06.003
Cardiac Bock-Marquette et al
Several small studies involving people with digital eye strain suggest that 612mg daily for about a month may improve focusing ability and reduce eye fatigue compared to placebo, though results vary across trials and endpoints.2 12 In the brain, preclinical studies show that astaxanthin can reduce oxidative stress in neurons and may help preserve mitochondrial function.27 A few human studies suggest possible cognitive benefits such as improved reaction time and memory scores but the sample sizes remain small, so researchers emphasize the need for larger, long-term trials before firm conclusions can be drawn.6 9 26 Cardiovascular and metabolic health Because oxidative stress and inflammation are key contributors to heart and metabolic diseases, researchers have explored whether astaxanthin can make a measurable difference

doi: 10.3389/fnut.2026.1785583 Received 11 January 2026 Revised 03 February 2026 Accepted 03 February 2026 Published 23 February 2026 Volume 13 - 2026 Edited by Bin Wang, Shaoguan University, China Reviewed by Xiaoli Tan, Xiangtan University, China Guang Wang, South China Agricultural University, China Updates Copyright 2026 Gao, Li, Niu, Ge and Luo