What is a common consequence of inadequate potassium intake?

A common consequence of inadequate potassium intake is muscle weakness and cramping. Potassium is an essential electrolyte that plays a critical role in muscle function, including the way muscles contract and relax. When potassium levels in the body are low, it can disrupt the normal electrical activity in the muscles, leading to symptoms such as weakness and cramping. This is particularly evident during physical activity when the demand for potassium increases.

Maintaining adequate levels of potassium is important for overall health, as it also supports cardiovascular function, nerve signaling, and fluid balance in the body. In contrast, the other options such as vision impairment and headaches, joint pain and stiffness, or skin rashes and irritation are not directly related to potassium deficiency and are generally associated with different nutritional deficiencies or health conditions.