You may notice a craving for salt, along with headaches, fatigue, and weakness, when magnesium stores are depleted.

https://www.scribd.com/document/1025165645/Early-Warning-Signs-Symptoms-of-Magnesium-Deficiency-in-Adults-128654

You may notice a craving for salt, along with headaches, fatigue, and weakness, when magnesium stores are depleted.