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Hypervitaminosis A results from excessive intake of preformed vitamin A. Genetic variations in tolerance to vitamin A intake may occur, so the toxic dose will not be the same for everyone. [23] Children are particularly sensitive to vitamin A, with daily intakes of 1500 IU/kg body weight reportedly leading to toxicity. [21]
Specific medical names of the different conditions are derived from the given vitamin involved: an excess of vitamin A, for example, is called hypervitaminosis A. Hypervitaminoses are primarily caused by fat-soluble vitamins ( D and A ), as these are stored by the body for longer than the water-soluble vitamins.
Vitamin A status involves eye health via two separate functions. Retinal is an essential factor in rod cells and cone cells in the retina responding to light exposure by sending nerve signals to the brain. An early sign of vitamin A deficiency is night blindness. [6] Vitamin A in the form of retinoic acid is essential to normal epithelial cell ...
A mother's nutritional intake during pregnancy is believed to influence and possibly offer protective effects against the development of allergenic diseases and asthma in children. [28] Maternal intake of vitamin D, vitamin E, and zinc have all been associated with a lower likelihood of wheezing in childhood, suggesting a protective effect. [28]
The research data suggest that the pandemic has negative effects on both weight loss and food health monitoring but the effects were short lived results. [ 17 ] Paying attention and taking measures to prevent mental health problems and post-traumatic stress syndrome, particularly in women, is already a need.
Pernicious anemia, or Addison's anemia, is an autoimmune disease which decreases red blood cell count, caused by the body's inability to properly absorb vitamin B12. It can cause diarrhea, pale ...
Niacin may raise heart disease risk, a study finds. Experts share what you need to know about vitamin B3 and its potential to trigger inflammation.
Longer-term effects of COVID-19 have become a prevalent aspect of the disease itself. These symptoms can be referred to as many different names including post-COVID-19 syndrome, long COVID, and long haulers syndrome. An overall definition of post-COVID conditions (PCC) can be described as a range of symptoms that can last for weeks or months. [83]