LYCOS RETRIEVER 
Potassium: Results
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Potassium occurs naturally in a wide variety of foods. As a result, dietary deficiency of potassium is uncommon. However, if you experience excessive fluid loss, through vomiting, diarrhea or sweating, or if you take certain medications (see section on Drug-Nutrient Interactions below), you may be at risk for potassium deficiency.
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Potassium is important for grapevines to function and is one of the most frequent nutritional deficiencies of vines. A grapevine with inadequate potassium produces poor, unevenly ripened fruit and reduced yields. Severe deficiency results in defoliation. Leaves in the mid- to basal portions of shoots are affected. Clusters of deficient vines tend to be small with a few unevenly ripened berries. Shatter of berries occurs in extreme cases.
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Potassium is known to decrease the excretion of calcium. As a result, increasing the amount of potassium-containing foods in your diet may be helpful in maintaining the density and strength of your bones.
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