Vitamin A is a fat-soluble vitamin, important for many bodily functions. For example, it is vital to maintain healthy vision, strong immune system, and good skin appearance.
There are order gabapentin canada two types of vitamin A that are available in food; the Vaughan retinol and Limbdi provitamin . Retinol is commonly found in meat, fish, eggs and dairy products. On the other hand, provitamin A is obtained by the body when it converts it through the carotenoids of plant foods such as red, green and yellow fruits and vegetables.
Although Kevelaer vitamin A deficiency is rare in developed countries, many people in developing countries do not get enough of it. The population at highest risk includes pregnant and breastfeeding women, infants and children. Therefore, know 6 signs of vitamin A deficiency in order to prevent it and preserve your health for a long time.
6 Signs of lack of vitamin A
Vitamin A is important for the creation and repair of skin cells. It also helps fight inflammation due to certain skin problems. Not getting enough may be the cause of the development of eczema and other conditions.
Eczema is a condition that causes dry, itchy skin and inflammation. Several clinical studies have shown that vitamin A supplement is effective in treating eczema . In a 12-week study, people with chronic eczema who took 10-40 mg of vitamin A per day experienced a 53% reduction in their symptoms.
Keep in mind that dry skin can have many causes, but chronic vitamin A deficiency may be the main reason.
The eye problems are the best known related to vitamin A deficiency. In extreme cases, not getting enough vitamins A can lead to complete blindness.
Having the inability to produce tears, is one of the first signs of vitamin A deficiency. Young children in India and Africa who have diets lacking this vitamin have a higher risk of developing dry eyes.
One study found that high doses of vitamin A decreased the prevalence of dry eyes by 63% in infants and children who took vitamin A supplements for 16 months.
The severe lack of vitamin A can cause night blindness. Several studies have reported a high prevalence of night blindness in developing nations. Due to the scope of this problem, health professionals have worked to improve vitamin A levels in people at risk of this condition.
In one study, women with night blindness received vitamin A in the form of food or supplements. Both forms of vitamin A improved the condition. As a result, women’s ability to adapt to darkness increased by 50% during the 6 weeks of treatment.
Vitamin A is necessary for reproduction in men and women, as well as for the proper development of babies.
The deficiency of vitamin A can cause infertility in both men and women. Studies show that female rats with little vitamin A have difficulty becoming pregnant and may have embryos with birth defects.
Other research suggests that infertile men may have a greater need for antioxidants due to the high levels of oxidative stress in their bodies. The lack of this vitamin is also related to spontaneous abortions. In turn, a study that analyzed blood levels of different nutrients in women who had recurrent miscarriages found that they had low vitamin A levels.
5.Delay in growth
Children who do not consume enough vitamin A may experience growth retardation. This is because this vitamin is necessary for the proper development of the human body.
Several studies have shown that vitamin A supplements, alone or with other nutrients, can improve growth. The majority of these studies were conducted in children from developing countries. In fact, a study in more than 1,000 children in Indonesia found that those with a lack of vitamin A who took high doses of supplements for 4 months grew more.
However, a review of studies found that supplementing with vitamin A in combination with other nutrients may have a greater impact on growth than supplementing only with vitamin A.
6.Respiratory tract infection
Frequent infections, especially in the throat or chest, can be a sign of vitamin A deficiency. Supplements of this vitamin can help with respiratory tract infections.
An investigation in children in Ecuador showed that those with low weight who took enough vitamin A per week had less respiratory infections. On the other hand, a review of studies in children found that vitamin A supplements can increase the risk of developing throat and chest infections by 8%. Therefore, the authors suggested that supplements should only be given to people with a true deficiency.