Women need 25 grams of fiber per day, and men need 38 grams per day, according to the Institute of Medicine. Eating more plant foods -- vegetables, beans, fruit, whole grains, and nuts -- is the best way and is one of the recommendations from the U.S. government's 2015 Dietary Guidelines.
The epidermis is the outer (epi in Greek meaning over or upon) of the two layers that make up the skin (or cutis), the inner layer being the dermis.
The epidermis is embryonic ectodermal in origin, and they are separated by the dermis by a basement membrane. The epidermis is composed of many layers of cells forming a stratified epithelium. The cells above the basement membrane are cuboid epithelium and form an actively dividing region known as the Malpighian layer.