a narrow opening produced by cleavage or separation of parts. 2. cleavage (def 1). 3. Anatomy. a natural division or groove in an organ, as in the brain. verb (used with object), fissured, fissuring. 4. to make fissures in; cleave; split.
A diet rich in potassium helps to counterbalance some of sodium's harmful effects on blood pressure. Foods that are good sources of potassium are listed in the Food Sources of Potassium table on the next page.
When it comes to dietary sodium, less is certainly best, yet Americans today consume 50% more than the recommended daily quantities of sodium. Diets high in sodium increase blood pressure levels.High blood pressure damages the kidneys over time, and is a leading cause of kidney failure.To help Americans reduce salt intake to the ideal one teaspoon per day, the National Kidney Foundation offers 10 tips to reduce sodium in your diet.o help Americans reduce salt intake to the ideal one teaspoon per day, the National Kidney Foundation and Council of Renal Nutrition member Linda Ulrich offer 10 tips to reduce sodium in your diet.