Clinical Study

Increased Macular Pigment Optical Density and Visual Acuity following Consumption of a Buttermilk Drink Containing Lutein-Enriched Egg Yolks: A Randomized, Double-Blind, Placebo-Controlled Trial

Figure 3

Mean (±SE) plasma lutein concentration in time for the lutein group (dark grey) and the placebo group (light grey). The increase in the lutein group was significantly different from the change in the control group ().