Potassium is an essential mineral. This electrolyte is necessary for muscle contraction and conduction of nerve impulses. In addition, potassium may help regulate blood pressure and oppose the effects of sodium. Hypokalemia, or low blood potassium, is rare and is usually the result of a metabolic disease rather than dietary insufficiency. Fruits, vegetables and some nuts and seeds are natural foods sources of potassium, and potassium supplements contribute only small amounts of potassium.
PhytoVitamins
PhytoVitamins maintains that its potassium capsules contain only "whole foods and homeopathic minerals." They are vegetarian and free from dairy, preservatives, colors, sugar, yeast, corn, and soy. This supplement includes organic antioxidant spices and seeds. Antioxidants can help prevent chronic diseases, although the Food and Drug Administration has not evaluated PhytoVitamins' supplements or health claims. Hyperkalemia is when there is too much potassium in the blood because the kidney is unable to remove the excess. This is a risk in potassium overdosing from supplements, and so each four-capsule serving contains only 60 mg of elemental potassium, or two percent of the daily value for potassium.
Source Naturals
Source Naturals Ultra Potassium supplements have eight sources of potassium.
The supplement focuses on Krebs cycle, which is the energy-generating cycle after the sugar metabolism path glycolysis, which breaks down sugars. This supplement supplies natural potassium bonded to amino acids that are intermediates in the Krebs cycle. Source Naturals explains that Krebs cycle products contribute to muscle energy. The Food and Drug Administration has not verified that Source Natural Ultra Potassium supplements improve muscle function. Each tablet has 40 percent of the daily value for vitamin C, 20 percent of the daily value for calcium and two percent of the daily value for potassium.
Forrest Health
Forrest Health sells the all natural Innate Response Formula of calcium, magnesium and potassium. The company promises "100% Whole food vitamins and minerals delivered in our proprietary FoodState food concentrates." The three minerals in this supplement come from S. cerevisiae. Other ingredients include rice bran, alfalfa leaf and guar gum. In addition to calcium, magnesium and potassium, these supplements have natural food components including enzymes, minerals and chlorophyll. Every two tablets contain 10 mg of elemental potassium or less than one percent of the daily value.
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