Could you have a zinc deficiency? The following signs of zinc deficiency are clues that you’re just not getting enough: PMS Decreased immune response, Increased susceptibility to viral infections, Diabetes Loss of appetite, Hair loss and Unwanted Hair, Skin problems (acne, eczema, etc.) White spots on the nails, Slow wound healing, and Anorexia Nervosa. Learn best food sources of Zinc from plant based foods to support your health and hormone balance.