Commonly due to nutrient
deficiency but may indicate low or deficient levels of immunglobulins.
Deficiency states that list muscle twitches include magnesium deficiency, vitamin D, vitamin B12 deficiency. Vitamin A is also needed for good eye health.
Nutrients needed for a healthy immune system: vitamin A, vitamin B6, vitamin B12, vitamins C, vitamin D, vitamin E, copper, iron, selenium, and zinc. Magnesium is needed for vitamin D absorption.