vitamin a deficiency icons set.

absorption acne adaptation beta blindness body carotene carotenoid carotin circle compound dark deficiency deprivation design diet dietary disease dry epithelial eye fat fatigue graphic growth hair health healthy human hyperkeratosis icon illustration immune impaired impairment insomnia lack loss low medical medicine natural night nutrition organic pastel reduced retardation retinoid retinol set shape shortcoming skin soluble supply symptom system tiredness tissue vector vision vitamin weight