Do Not Skip Dietary Fiber in Three Daily Meals
Dietary fiber is the main component of plant cell walls, including cellulose, hemicellulose, lignin, cutin and other substances. Before the 1970s, nutritional science only used the term "crude fiber" to describe indigestible food residues, covering only part of cellulose and lignin. It was once widely believed that crude fiber offered no nutritional value to humans, and excessive intake ...
2019-03-27