In a "standard" diet, the daily intake of potassium amounts to 4 g and is much higher than the required requirement.
such as dried beans and peas, asparagus, potatoes, apricots, bananas, cauliflowers, spinach.Specifically, the content is
Spinach
Large quantities of potassium can be eliminated through the kidneys without risking intoxication, as occurs in vegetarians. On the contrary, in the case of a deficient intake, there is no blocking mechanism for its elimination, therefore the same quantity is always eliminated ( mandatory deletion).
For further information: Potassium potassium metabolism can occur in particular pathological states, following a prolonged parenteral administration of potassium-free solutions, in the case of adrenal hyperfunction or excessive intake of diuretics. The symptoms are: muscle weakness, hyperexcitability, arrhythmias and electrocardiographic changes up to heart block and death.An excess of potassium due to renal insufficiency, dehydration, insufficient adrenal secretion, instead causes: asthenia, muscle cramps, hypotension, bradycardia and cardiac arrest.
For further information: Potassium Deficiency and Potassium Supplements Supplements - Potassium Chloride Supplements - Potassium Citrate Supplements of mineral salts mainly anaerobic is accompanied by a release of potassium from the muscle tissue; this phenomenon, together with the haemoconcentration and the possible release of potassium by the erythrocytes, determines an increase in the concentration and total plasma content of potassium, even if of short duration, the entity of which is correlated with the intensity of muscular work.
Hypokalaemia can be observed following prolonged and / or repeated exercises especially for sweat losses but also for lack of effective saving mechanisms; if not adequately treated it can lead to more or less serious consequences up to renal failure.
it is relatively constant; in the lean alipidic mass it is contained in a measure of 2.5 g / kg, while the reserve triglycerides are totally devoid of it. This premise lays the foundation for the assessment of body composition by measuring potassium in the body.The instruments used for this purpose exploit the natural presence in the organism of a radioactive isotope, potassium forty (K40), which is always present in defined proportions with respect to the total body potassium. Due to this radioactivity, potassium 40 continuously emits gamma signals, which can be picked up by suitable machinery and processed to obtain an estimate of the lean body mass; by difference, the lipid mass can then be calculated.
It is undoubtedly an extremely precise method; the examination lasts about fifteen minutes, it is not dangerous to health, but the prohibitive costs of the equipment make it impractical to use it on a large scale.
