Potassium supports heart function, muscle contractions, nerve signaling, and fluid balance. It works alongside sodium to maintain proper cell function. Most vegetables and fruits provide ample potassium for guinea pigs.
Easily met through a varied vegetable diet. Bell peppers, romaine, and spinach are good sources.
Muscle weakness, irregular heartbeat, lethargy, poor appetite.
Excess potassium is normally excreted by healthy kidneys. Problems only arise with kidney disease.
Potassium and sodium work as opposing electrolytes to maintain fluid balance, nerve function, and muscle contraction. Guinea pigs' natural herbivore diet is inherently high in potassium and low in sodium — the opposite of many processed pet treats. This natural ratio supports healthy blood pressure and kidney function. Disrupting it with salty foods stresses the cardiovascular and renal systems.
What this means: Never add salt or salty foods to a guinea pig's diet. The natural potassium-to-sodium ratio in hay and vegetables is ideal. Salt licks are generally unnecessary and can cause excess sodium intake if overused. If provided, monitor water intake to ensure adequate hydration.
