Symptoms of vitamin ad deficiency

The body may lack many vitamins and trace elements, which require special attention. For example, some people may lack vitamin A and vitamin D, which may lead to some minor complications in the body. Especially when the body lacks vitamin D, it often leads to decreased intestinal absorption function of patients, and even causes many effects on pregnant women, breastfeeding women and the elderly.

Vitamin A deficiency The earliest symptom of vitamin A deficiency is a decreased ability to adapt to darkness, which can lead to night blindness in severe cases; it can cause dry eyes, which can further lead to blindness; it can also cause a decreased ability, and in severe cases it can cause dryness, roughness, hyperplasia and keratinization of the epithelium of different tissues of the body, resulting in various symptoms, such as keratinization of sebaceous glands and sweat glands leading to dry skin, excessive keratinization of hair follicles leading to hair follicle papules and hair loss; decreased appetite and susceptibility to infection; hemoglobin synthesis and metabolism disorders, low immune function, and slow growth and development in children.

Vitamin D deficiency leads to reduced intestinal absorption of calcium and phosphorus and reduced reabsorption of calcium and phosphorus by the renal tubules, which increases phosphorus excretion in the urine and decreases plasma phosphorus concentration, affecting bone calcification and causing mineral abnormalities in bones and teeth. It can cause rickets in infants and young children. In adults, especially pregnant women, nursing mothers and the elderly, it can cause decalcification of mature bones and lead to osteomalacia, osteoporosis and tetany.

Foods rich in vitamin A: liver, cod liver oil, fish eggs, whole milk, cream, egg yolk, etc.

Foods rich in vitamin D: marine fish (such as sardines), liver, egg yolks and other animal foods and cod liver oil preparations.

Regular sunbathing is the best source of cheap, sufficient and effective vitamin D3 for the human body.

Indications

Suitable for vitamin AD deficiency, such as night blindness, dry eye, rickets, osteomalacia, etc.

Clinical Application

Infants under 1 year old take 1 tablet per day (Vitamin A 1500 IU, Vitamin D 2500 IU); children over 1 year old take 1 tablet per day (Vitamin A 2000 IU, Vitamin D 2700 IU).

Adverse Reactions

No adverse reactions were observed when taken at the recommended dose. Long-term or excessive use can cause chronic poisoning. Early symptoms include bone and joint pain, swelling, itchy skin, chapped lips, weakness, fever, headache, vomiting, constipation, diarrhea, nausea, etc.