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vitamin b and c can cause serious birth defect
Vitamin A can cause birth defects or liver toxicity during pregnancy. Therefore, the maximum recommended dose a pregnant woman should have is 10000 iu of Vitamin A daily. She should not take more than 1 pre-natal vitamin per day, nor should she take any extra supplements in conjunction with the pre-natal vitamin unless she speaks to her doctor or pharmacist. There are also prescription drugs that contain Vitamin A derivatives that must be avoided during pregnancy. They are isotretinoin, and tretinoin. They too may cause serious birth defects for the developing fetus.
Vitamin A is the precursor for the pigments in the rod and cone cells of the eyes that detect light. With it you can see, a deficiency can cause blindness. However too much vitamin A can be toxic and it builds up in fat. To prevent toxicity supplements do not actually contain vitamin A, instead they contain Beta Carotene a precursor of vitamin A that is nontoxic and that the body converts as it needs vitamin A.
It can cause an already ^ Ca level to raise even further and in some instances, even toxicity.
Vitamin D is a fat-soluble vitamin that plays a lot of important role in the human body. It is also responsible for increasing intestinal absorption of calcium, phosphate, and magnesium, and many other biological effects that are critical for building bone. This vitamin is the most important compounds in this group are vitamin Dā and vitamin Dā. Research also says that this D vitamin can reduce cancer cell growth, reduce inflammation and help to control infections. But excess intake of Vitamin D has also some disadvantages, it not just upsets the stomach but also can be a cause of a lot of sicknesses. There is some common toxicity of excess intake of Vitamin D, such as: Cause of Hypercalcemia. Increases Calcium Level. Sudden Weight Loss. Muscle Stiffness and Lose Bone Density. Cause of Fatigue. Reduce Vitamin K Level. Affect Kidney. Cause Various Digestive. Cause of Difficulty in Defecation. To know more details, I will recommend visiting the blog vitaminmineralgreen blogspot,com. Thank you.
The animal form of Vitamin A is what is toxic to a human in overdose. The vegetable form has no toxicity level. The FDA recommends you don't consume over 10,000 IU per day.
Vitamin A in too high of doses can cause birth defects so the amount you get in your daily diet and your prenatal vitamin should be enough.
Pulmonary Oxygen Toxicity (PO) and Central Nervous System Toxicity (CNS)
Fat soluble vitamins are not as quickly eliminated from the body, but rather are stored in fat tissues and in various organs throughout the body. The regulation of the body levels of these vitamins is therefore not as precise as for the water soluble vitamins and long term consumption at levels above those required can mean the build up of toxic levels of fat soluble vitamins in the body. Toxic symptoms have been recorded but for some fat soluble vitamins such as vitamin E and vitamin K it has been difficult to establish the effects of chronic (long term) consumption levels.
Vitamin D toxicity can be caused due to too much intake of supplements . The symptoms of too much vitamin D are: Anorexia vomiting nausea like hypercalcemia . This is followed by polyuria, poludipsia, nervousness, insomnia and ultimately renal failure.
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