Dietary fiber is the edible parts of plants or analogous carbohydrates that are resistant to digestion and absorption in the human small intestine, with complete or partial fermentation in the large intestine. Dietary fiber includes polysaccharides, oligosaccharides, lignin, and associated plant substances.
The theoretical rate of return attributed to an investment with zero risk. The risk-free rate represents the interest on an investor's money that he or she would expect from an absolutely risk-free investment over a specified period of time. Next Up.
Return on investment is the profit expressed as a percentage of the initial investment. Profit includes income and capital gains. Risk is the possibility that your investment will lose money. With the exception of U.S. Treasury bonds, which are considered risk-free assets, all investments carry some degree of risk.