The main symptoms of zinc deficiency are: (1) anorexia. Zinc deficiency taste buds function is reduced, taste function is reduced, loss of appetite, eating less, digestion is also weakened; (2) growth and development backward. Zinc deficiency prevents protein synthesis and causes a reduction in food intake, affecting the growth and development of children, and in severe cases, there can be dwarfism. Children with severe zinc deficiency may be affected in their intellectual development and even have mental disorders; (3) delayed sexual development during puberty. Specific manifestations are, male genital testicles and penis is too small, low sexual function; female breast development and menstruation late; male and female pubic hair appears late; (4) heterophagia. Zinc-deficient children may like to eat dirt, wallpaper, paper, cinders or other foreign objects, etc. Adults with zinc deficiency are also reported to like to eat dirt; (5) susceptible to infection. Zinc deficiency reduces the immune function, easy to suffer from various infectious diseases, including diarrhea; (6) skin and mucous membrane symptoms. When zinc deficiency is severe, the whole body skin can have a variety of rashes, dermatitis herpetiformis, recurrent mouth ulcers, lower limb ulcers do not heal for a long time and varying degrees of baldness, etc.; (7) backward growth and development of the fetus, multiple malformations. Severe zinc deficiency in pregnant women can lead to backward fetal growth and development and a variety of malformations, including neural tube malformation. Prolonged labor and excessive bleeding due to weak uterine contractions; (8) Others. Reduced serum vitamin A due to vitamin A metabolism disorders, prolonged dark adaptation time, night blindness and other symptoms of calcium deficiency Long-term calcium deficiency may cause the following symptoms: Children: night terrors, night crying, irritability, occipital baldness, square skull, chicken chest, "X" shaped legs, "O" shaped legs, rickets, skeletal development, and other symptoms. Children: night terrors, night crying, irritability, occipital baldness, square skull, chicken chest, "X"-shaped legs, "O"-shaped legs, rickets, skeletal dysplasia Adolescents: weak legs, cramps, poor performance in physical education classes, fatigue, irritability, lack of concentration, partiality, anorexia, tooth decay, dental dysplasia, easy to catch a cold, allergies, etc. Young adults: frequent tiredness, fatigue, cramps, back pain, easy to catch a cold, easy to be allergic, etc. Maternity: calf cramps, backache and leg pain, joint pain, swelling, pregnancy hypertension, etc. Middle-aged and old people: lumbago and leg weakness, calf spasms, osteoporosis, osteomalacia, osteochondrosis, all kinds of fractures and stone disease, diabetes, hypertension, heart disease and so on. In teaching you how to supplement the two elements of the method: in accordance with our nutritional science of the scientific method of supplementation is, first supplement zinc, and then supplement calcium, can be eaten at intervals of 2 hours. Zinc, calcium with supplementation, at the same time into the body, calcium is a macronutrient, strong activity, 2 will produce a struggle to grab the carrier protein and resistance, so that the zinc, not absorbed, and absorbed calcium. Zinc's main physiological role is to participate in enzyme synthesis, promote the division of body cells, such as bone cells, if the bone cells are not divided, can imagine, calcium deposition to where to go this is a lot of people supplemental calcium and no effect of the reason. Zinc, plus calcium with supplementation, is only a manufacturer to capture the consumer's a psychological - spend the same money to make up 2 kinds, right. So I suggest: it is best not to supplement at the same time, the first supplement zinc, and then supplement calcium, can be spaced out 2 hours to eat. I hope this will help you.

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