Common salt is a mineral composed primarily of sodium chloride. Salt is essential for animal life, and saltiness is one of the basic human tastes. In general, Americans should limit daily sodium consumption to 2,300 milligrams, but this is an upper safe limit, not a recommended daily allowance.
Black pepper is a spice derived from berries known as peppercorns and is a rich source of manganese, vitamin K and copper. Black pepper is high in antioxidants and can improve digestion and intestinal health.