To begin, the alfalfa plant is just that, a plant. When something is naturally derived and an evolved product of the Earth, the benefits that arise from using it are abundant. The alfalfa plant is naturally high in many essential vitamins, including A, D, E, K, and even the full family of B vitamins.
The fovea centralis (the term fovea comes from the Latin, meaning pit or pitfall) is a small, central pit composed of closely packed cones in the eye. It is located in the center of the macula lutea of the retina. The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities where visual detail is of primary importance, such as reading and driving.
Cones and Rods. This density map shows the retina, which is made up of cones and rods. Cones perceive color and rods perceive shadow in images. In the fovea, which is responsible for sharp central vision, there is huge density of cones but no rods.