Guest guest Posted October 19, 2003 Report Share Posted October 19, 2003 Potassium/Sodium Balances- Edema Our cells contain more potassium than any other mineral. A total of approximately 250 mgs of this nutrient can be found in the adult body. FUNCTIONS AND USES A growing body of evidence indicates that low levels of potassium are associated with high blood pressure and therefore deserve more attention! This association may be especially strong when the sodium to potassium ratio is high. Some researchers feel that in some cases, low potassium may play a more significant role in hypertension than high sodium does. In several studies, for instance, potassium supplementation significantly lowered blood pressure without excessive sodium restriction. As some researchers have pointed out, diets restricted in calories and cholesterol are often recommended to people with cardiovascular disease. It is unfortunate that such diets also tend to reduce nutrients such as calcium and potassium, which may be essential for maintaining blood pressure. Potassium may prove to be of value to the cardiovascular system in other ways as well. In one animal study, rats were given stroke- inducing diets. The group that was supplemented with potassium suffered a 2 percent rate of fatal strokes, as compared with the 83 percent rate of the unsupplemented group. In another animal study,potassium supplementation was able to protect against the kidney damage resulting from hypertension. Other Uses Potassium is essential for maintaining the *fluid* balance in our cells, and is required for the enzymatic reactions taking place within them. Potassium is used to convert Glucose into Glycogen for storage and later release. It is also used for nerve transmission, muscle contraction, hormone secretion and other functions. RDIs and DEFICIENCY SYMPTOMS Potassium deficiency symptoms include edema, nausea, vomiting, which canlead to further potassium losses, listlessness, feelings of apprehension, muscle weakness, muscle spasms, and cramps, tachycardia, (rapid heartbeat) and in extreme cases, heart failure! There is no Reference Daily Intake for potassium, but it has been estimated that the average American Diet contains from 2 to 6 grams per day. Potassium deficiency can result from severe malnutrition, alcoholism, anorexia nervosa, vomiting or diarrhea or from illnesses that seriously interfere with appetite. Potassium may be depleted following severe tissue injury due to surgery, or burns, and during prolonged fevers. The excessive use of steroids, laxatives, and some diuretics also encourages potassium loss. If a person already has heart disease, low potassium can worsen the picture! In the body potassium must exist in *balance* with sodium. Although sodium may be an important dietary determinant of blood pressure, variations in the potassium to sodium ratio in the diet affect blood pressure under certain circumstances. So when considering potassium levels, we must consider sodium levels as well and watch out for high sodium foods, including canned goods, luncheon meats, sausages, and frozen foods. Food Sources: Potassium is found in a wide range of foods. Organic meat and cold-water fish are good sources. Legumes, fruits, vegetables,and organic whole grains are also respectable sources. People who are taking diuretics for the treatment of high blood pressure are frequently advised to eat fruits such as bananas, oranges and organic tomatoes for their potassium content. However, the amount of potassium in these foods is minimal compared with the amount excreted in urine as a result of diuretic use! It would take an enormous amount of bananas per day to provide the recommended amount of potassium for a patient taking diuretics! Many physicians often prescribe high-dose potassium supplements for these patients. However it is doubtful that the potassium is sufficiently replaced even then, considering the amounts that are flushed on out of the body with these powerful drugs! Bear in mind, too, that potassium is lost through cooking, although the amount of potassium lost varies according to the cooking method used. A boiled potato may have lost up to 50 percent of its original potassium content. A steamed potato, only 3 to 6 percent. Potassium to Sodium Ratio A one-year study headed by James C. Smith, Jr., Ph. D. A chemist at the USDA's Agriculture Research service found that the 28 men and women in their study ate too much table salt (sodium chloride) and not enough potassium, exceeding the safe and adequate daily ratio recommended by the National academy of Sciences in Washington, D.C. The optimal ratio is 600 mgs of sodium for 1,000 mgs of potassium. The adults in this study were consuming 1,300 mg of sodium daily for every 1,000 mgs of potassium. Recommended Range- As a matter of general information, a teaspoon of refined table salt contains about 2,500 mgs of sodium. The recommended range of potassium is between 1,900 mgs and 5,600 mgs daily. Vitamin and mineral supplements, by FDA regulation, are only allowed to contain 99 mgs of potassium. To take a higher amount you need a prescription. How silly this seems when a medium-sized banana contains approximately 630 mgs of potassium. When people consume a high level of potassium in their diets, they excrete more sodium in their urine. But when the opposite is true, and they consume more sodium than potassium, they may retain excess sodium in " fluids " surrounding cells in the body resulting in edema. Urinalysis can determine if your potassium and sodium intakes are out of balance, and if either is too high or low. The Best Natural Sources of Potassium are: One cup organic potato……………..1,747 mg One cup organic baked squash……..1,200 mg One cup almonds, cashews, Brazil nuts or peanuts…..780 to 1,000 mg Half a cantaloupe…………………….885 mgs 3-4 ounces of raw spinach……………780 mg 1 banana………………………………630 mgs 1 tablespoon blackstrap molasses……585 mgs Half cup of wheat germ………………535 mgs Half an avocado………………………385 mgs Medium orange………………………365 mgs. These natural foods can provide valuable protection against strokes and edema. Best of all, these are readily available foods, and are easy to prepare and eat. Monitor your Potassium levels- If you are using diuretics (herbal or otherwise) or are on blood pressure medication, you may need a physician's prescription for extra potassium. It would be wise to have your potassium blood levels monitored regularly. Remember, when potassium is lost by a diuretic, so is *magnesium*. You may need to supplement with this essential mineral as well. SUPPLEMENTS- Potassium is available in tablet and liquid form. OPTIMUM DAILY INTAKE- ODI- Since potassium is so widely available in fresh foods, most people do not require a potassium supplement. Rather, most people should be advised to reduce sodium intake so that a sodium-to-potassium ratio of 1 to 1 is achieved! If however, you wish to take a supplement, the Optimum Daily Intake of potassium is: 99-300 mgs for men and women. Your physician may suggest higher levels of potassium if you are taking certain diuretics, or if you are trying to lower your blood pressure. Potassium toxicity is seen when daily intakes exceed 18 grams, an amount that is unlikely to be ingested through foods. JoAnn Guest mrsjoguest DietaryTipsForHBP http://www.geocities.com/mrsjoguest/Botanicals.html Quote Link to comment Share on other sites More sharing options...
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