Rationale for a LifeMeter score of 400+
for good level of systemic and retinal carotenoids

Adequate adherence to the Mediterranean Diet was associated with LifeMeter scores near or above 400.3

Carotenoid bioavailability may be important for cardiovascular protection and a measurement >400 was inversely associated with cardiovascular disease risk.4 This is as related to systemic health.

Skin carotenoid measurements correlated strongly with retina autofluorescence imaging macular pigment volume under the curve (MPVUS) measurements and rotationally averaged macular pigment optical density (MPOD) where >400 correlated with known benefit at healthy MPVUS and MPOD levels.1