Vitamin A excess, known as vitamin A poisoning, occurs when you have too much vitamin A in your body. This may be acute or chronic. Acute toxicity (acute toxicity) usually occurs in a few hours or a few days by taking high amounts of vitamin A in a short time. Chronic poisoning is caused by the accumulation of large amounts of vitamin A in the body over a long period of time. Symptoms are as follows; impaired vision, bone pain and changes in the skin. Chronic toxicity can lead to liver damage and increase pressure on the brain.
Vitamin A can be diagnosed by blood testing to check for vitamin A levels. In general, the problem is solved by limiting intake of vitamin A.
Why do vitamin A excess take place?
Vitamin A is stored in the liver when it is consumed in large amounts and accumulates over time. In most people, vitamin A toxicity is the reason why vitamin A pills are taken regularly in high doses every day. This may also be due to acne treatments involving high doses of vitamin A. Acute vitamin A poisoning usually occurs in children due to the fact that many of the vitamin A pills are sugared and swallowed.
Which foods are found in vitamin A?
Vitamin A is very important for eye health in children and adults. Vitamin A also plays an important role in the development of the fetus, especially in the heart, ear, eyes and other limbs. You can meet your vitamin A needs by consuming nutrients that contain vitamin A
Those vitamins include;
- Fish and fish oil
- Dark color fruits
- Leafy and green vegetables
- Orange and yellow vegetables (sweet potatoes, carrots)
- Some vegetable oils
What is the daily need for vitamin A?
According to the National Institutes of Health (NIH);
0 to 6 months old baby: 400 micrograms (mcg)
7 to 12 months old baby: 500 mcg
1 to 3 years 300 mcg
4 to 8 years: 400 mcg
9 to 13 years: 600 mcg
14 to 18 years: 900 mcg in men, 700 mcg for women
14-18 years old / pregnant woman: 750 mcg
14 to 18 years / lactating women: 1,200 mcg
19+ age: 900 in men, 700 mcg in women
19+ years old / pregnant woman: 770 mcg
19+ years old / lactating women: 1.300 mcg
Taking vitamin A more than the daily recommended dose for a few months leads to chronic vitamin A poisoning. In children and infants are more sensitive to vitamin A, poisoning occurs in a shorter time.
Symptoms vary depending on whether the poisoning is acute or chronic. Headache and skin rash are common in both cases.
Acute symptoms of vitamin A are as follows;
- Abdominal pain
- Increased pressure on the brain
Symptoms of chronic vitamin A excess;
- Blurred vision or other visual changes
- Bone swelling
- Bone Pain
- Nausea and vomiting
- Sunlight sensitivity
- Dry, rough skin
- Skin rash and itching
- Breaking in nails
- Skin cracks in the corners of the mouth
- Oral ulcers
- Skin yellowing (jaundice)
- Hair loss
- Respiratory tract infection
- Mind blur
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