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Hypervitaminosis A is having too much vitamin A in the body.
Alternative NamesVitamin A toxicity
Causes, incidence, and risk factorsThere are two types of vitamin A hypervitaminosis:
- Acute -- caused by taking too much vitamin A over a short period of time
- Chronic -- occurs when too much of the vitamin is present over a longer period
Chronic vitamin A toxicity develops after taking too much vitamin A for long periods.
Symptoms- Abnormal softening of the skull bone (craniotabes -- infants and children)
- Blurred vision
- Bone pain or swelling
- Bulging fontanelle (infants)
- Changes in consciousness
- Decreased appetite
- Dizziness
- Double vision (young children)
- Drowsiness
- Headache
- Increased intracranial pressure
- Irritability
- Liver damage
- Nausea
- Poor weight gain (infants and children)
- Skin and hair changes
- Vision changes
- Vomiting
- Bone x-rays
- Blood calcium test
- Cholesterol test
- Liver function test
- Blood test to check vitamin A levels
Treatment involves simply stopping the use of too much vitamin A.
Expectations (prognosis)Most people fully recover.
Complications- Excessively high calcium levels
- Failure to thrive in infants
- Kidney damage due to high calcium
- Liver damage
Taking too much vitamin A during pregnancy may cause abnormal development in the developing baby. Talk to your health care provider about eating a proper diet while you are pregnant.
Calling your health care providerCall your health care provider if you think that you or your child may have taken too much vitamin A, or you have symptoms of excess vitamin A.
PreventionTo avoid hypervitaminosis A, avoid taking more than the recommended daily allowance of this vitamin. Recent emphasis on vitamin A and beta carotene as anticancer vitamins may contribute to chronic hypervitaminosis A, if people take more than is recommended.
ReferencesZile M. Vitamin A deficiencies and excess. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 45.
Mason JB. Vitamins, trace minerals, and other micronutrients. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 237.
What else can I help you with?
What is one possible consequence of hypervitaminosis of vitamin A?
One possible consequence of Hypervitaminosis A is reduced bone density that can lead to osteoporosis.
What else is vitamin toxicity called?
called hypervitaminosis or vitamin poisoning
What would a cat take for milk fever?
* Intravenous fluids * Bisphosphonates (drugs that stop bone resorption such as pamidronate or etidronate) * Calcitonin * Glucocorticoids (steroids, for hypervitaminosis D that is not medication related) * Hemodialysis (for hypercalcemia that is unresponsive to treatment and is life-threatening)
In hypervitaminosis A D why does calcium deposit in kidney and not in liver and why does vit A store in liver and not in kidney?
The body stores excessive Vitamin A in the liver for later use if needed. Vitamin D however needs to be converted to a different form to be biologically active. This conversion after it leaves the liver, occurs in the kidney where it is converted to 1,25-dihydroxycholecalciferol, a biologically active form.
Is fox liver poisonous?
Yes, fox liver can be toxic to humans. It contains high levels of vitamin A, which can lead to hypervitaminosis A if consumed in large quantities. Additionally, foxes can carry parasites and diseases that may pose health risks if their liver is ingested. Therefore, it is not advisable to eat fox liver.
What vitamin excess use is dangerous to health?
Excess of vitamin intake or vitamin overdose is called hypervitaminosis. It is a condition of high storage levels of vitamin, which can lead to toxicity.Hypervitaminosis A is an excess of vitamin A, Similarly Hypervitaminosis C an excess of vitamin C, and so on.High or toxic levels of vitamins occur when you have high supplement intake and when you do not take from dietary sources.
Are carnivore livers toxic?
Carnivore livers can contain high levels of certain vitamins, particularly vitamin A, which can be toxic in excessive amounts. While the liver is nutritious, consuming it in large quantities can lead to hypervitaminosis A, causing health issues. Additionally, carnivores may accumulate toxins from their diet, but this varies by species and environment. Generally, moderation is key when consuming organ meats from any animal.
What can too much vit A cause?
Excessive vitamin A intake, particularly in the form of supplements, can lead to hypervitaminosis A, which may cause symptoms such as nausea, dizziness, headaches, and even more severe effects like liver damage and neurological issues. Chronic overconsumption can also result in symptoms like skin changes, bone pain, and an increased risk of fractures. It's important to balance vitamin A intake through diet and supplements to avoid these adverse effects.
What conditions can you not take klb6 with?
KLB6, a dietary supplement often containing a blend of vitamins and minerals, should be used cautiously in individuals with certain conditions. People with allergies to any of its components, those with hypervitaminosis (excessive vitamin levels), or individuals with kidney disorders should avoid it. Additionally, those on anticoagulant medications or other supplements should consult a healthcare provider before use to prevent potential interactions. Always consult a healthcare professional for personalized advice.
What vitamin should you take when you smoke?
You should have an adequate supply of antioxidant vitamins, like Vitamin C and Vitamin E. You should also ensure that you eat colored vegetables, which contain flavonoids, in addition to Vitamin A (also an antioxidant). Intake of vitamin A preparations are not recommended, as excess of it may cause hypervitaminosis A.
Hypervitaminosis D?
DefinitionHypervitaminosis D is a condition that occurs after taking excessive doses of vitamin D.Alternative NamesVitamin D toxicityCauses, incidence, and risk factorsAn excess of vitamin D causes abnormally high levels of calcium in the blood, which can eventually severely damage the bones, soft tissues, and kidneys. It is almost always caused by forms of vitamin D that require a doctor's prescription.SymptomsConstipationDecreased appetite (anorexia)DehydrationFatigueIrritabilityMuscle weaknessVomitingSigns and testsExcess calcium in the blood (hypercalcemia)Excess calcium in the urine (hypercalciuria)Excessive thirst (polydipsia)High blood pressurePassing large amounts of urine (polyuria)Tests to confirm the diagnosis:1,25 dihydroxyvitamin D levels25-hydroxyvitamin D levelsSerum calciumSerum phosphorusX-ray of the boneTreatmentStop taking vitamin D. Consult your physician. In severe cases, other treatment may be necessary.Expectations (prognosis)Recovery is expected.ComplicationsDehydrationHypercalcemiaKidney damageKidney stonesCalling your health care providerCall your health care provider if:You or your child shows symptoms of hypervitaminosis D and has been taking more vitamin D than the recommended daily allowanceYou or your child shows symptoms and has been taking a prescription form of vitamin DPreventionTo prevent this condition, pay careful attention to the correct vitamin D dose.
Is taking 25 different vitamins everyday bad for you?
Most vitamins taken are okay to ingest in excess. Exceeding the daily requirement by more than 125% is not necessarily going to help you, however. Your body will just get rid of what it doesn't need (water-soluble vitamins). Consult your doctor or pharmacist regarding the 25 different vitamins that you are taking, as some may affect any medications you may be taking. Be sure that you are not taking too much of a particular vitamin that may not be removed in excess from the body (fat-soluble vitamins). View attached chart to learn more about hypervitaminosis (excess intake of particular vitamins) and what the recommended intake is.
