Which is a common symptom of magnesium deficiency?

Muscle cramps, fatigue, and irritability are indeed common symptoms of magnesium deficiency. Magnesium plays a crucial role in numerous physiological functions, including muscle contraction and relaxation, energy production, and the regulation of neurotransmitters. When there is an insufficient amount of magnesium in the body, muscle cramps may occur because magnesium helps to regulate calcium levels in the muscles, which influences muscle contractions. Additionally, fatigue can arise due to magnesium's role in the production of ATP (adenosine triphosphate), the energy currency of cells. Irritability is also common, as magnesium is essential for proper nervous system function; low levels can lead to an imbalance that may affect mood.

Other symptoms, while potentially related to different deficiencies or health issues, are not typically associated with magnesium deficiency as directly as muscle cramps, fatigue, and irritability.