WordNet
n. lack of a mineral micronutrient that is essential for normal nutrition or metabolism
Wikipedia
Mineral deficiency is a lack of dietary minerals, the micronutrients that are needed for an organism's proper health. The cause may be a poor diet, impaired uptake of the minerals that are consumed or a dysfunction in the organism's use of the mineral after it is absorbed. These deficiencies can result in many disorders including anemia and goitre. Examples of mineral deficiency include, zinc deficiency, iron deficiency, and magnesium deficiency.
Usage examples of "mineral deficiency".
Where the salt level is low, either through mineral deficiency in the diet or through excessive loss of salt through perspiration, saltiness becomes a pleasanter sensation than otherwise.
Jump did that to you, too, left you with a metallic taste that was mineral deficiency.
But the gold filled the air with a yellow light that made the people look as if they were suffering from some mineral deficiency.