The Effects of a Zeaxanthin Intervention on Visuomotor Function

Inclusion Criteria: * Age: ≥18 and ≤ 40 years * BMI: ≥ 20 and ≤ 30 kg/m2 * No anticipated changes in dieting habits (as relevant to the intake of xanthophylls and fats/oils). * No anticipated surgical procedures. * Willingness and ability to give written informed consent and willingness and ability to comply with the study requirements. * Corrected visual acuity (ETDRS): better than 20/60 in the eye selected for the study Exclusion Criteria: * Smokers * Current or history of relevant ocular diseases (such as AMD) or other conditions e.g., lipid disorders. * Inability to reliably perform macular pigment optical density measurements by "Heterochromatic Flicker Photometry" or any of the other ophthalmic tests of the study. * Any condition likely to interfere with normal gastro-intestinal absorption of xanthophylls (e.g., digestive disorders: inflammatory bowel disease, ulcerative colitis, Crohn's, irritable bowel, etc. or lipid disorders including conditions such as hypercholesterolemia) * Current use of xanthophyll containing supplements or use of xanthophyll containing supplements in the past 6 months (but excluding multivitamins containing lutein or zeaxanthin at low potency). * Participation in any other study during last 1 month before study initiation. * Known hypersensitivity or allergy to xanthophylls. * Regular intake of medications or supplements, which the principal investigator deems likely to confound the study outcomes. These include diabetes medication and statins or any other drug/supplement to modulate cholesterol or fat digestion/absorption.