Vitamin C is important for maintaining healthy bones, teeth, connective tissue, muscles, skin, and capillaries. It also helps your body absorb iron. Many foods are naturally high in vitamin C, including citrus fruits, leafy vegetables, and tomatoes. You should not use ascorbic acid if you have ever had an allergic reaction to a vitamin C supplement.
Your dose needs may be different during pregnancy or while you are breast-feeding a baby. Do not use ascorbic acid without your doctor's advice in either case. Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. This is not a complete list of side effects and others may occur.
Call your doctor for medical advice about side effects. Use Ascorbic Acid Vitamin C exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended. Use exactly as directed on the label, or as prescribed by your doctor.
The recommended dietary allowance of vitamin C ascorbic acid increases with age. Follow your healthcare provider's instructions. Measure liquid medicine with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one. Keep the orally disintegrating tablet in the package until you are ready to take it. Use dry hands to remove the tablet and place it in your mouth.
Can you ever really overdo them? Although your body can excrete large amounts of water-soluble vitamins, it holds onto fat-soluble vitamins, which can be toxic at high levels. Gerber said. Vitamin A is a fat-soluble nutrient that is naturally present in many foods, like beef, eggs and many fruits and vegetables. An overdose of this vitamin can lead to problems with confusion, hair loss, liver damage and bone loss. It can also cause an increased risk for death and lung-associated issues for those who have a history of smoking—particularly female smokers.
Vitamin E is a fat-soluble nutrient found naturally in foods and added to some fortified foods that can help protect cells from damage caused by free radicals, such as air pollution. But taking too much of this supplement can increase your risk for bleeding and bleeding in the brain. But in supplement form, it can induce blood clots, which can lead to heart attacks and strokes, if you take too much.
You may have noticed we left vitamin D off this fat-soluble list, and there is a good reason or two for that. In addition to this, many Americans are actually deficient in the vitamin as well. With cold season, flu season and the COVID pandemic , many people load up on vitamin C and zinc thinking they can fight off—and even prevent illnesses. Vitamin C is generally safe, but in large doses anything over 2,mg , it can cause diarrhea and nausea. However, many supplements contain extremely high amounts of the vitamin, which can cause undesirable side effects in some cases.
In contrast to fat-soluble vitamins , water-soluble vitamins do not get stored within the body. Instead, the vitamin C that you consume gets transported to your tissues via body fluids, and any extra gets excreted in urine 1. However, supplementing with high amounts of vitamin C can lead to adverse effects, such as digestive distress and kidney stones. In general, these side effects do not occur from eating foods that contain vitamin C, but rather from taking the vitamin in supplement form.
Thus, a tolerable upper limit TUL of 2, mg per day has been established 1 , 3 , 4 , 5. Excessive intake has also been reported to lead to acid reflux, although this is not supported by evidence 1 , 3 , 4 , 5.
Ingesting more than 2, mg of vitamin C per day may lead to gastrointestinal upset, including symptoms like diarrhea and nausea. Vitamin C is known to enhance iron absorption. It can bind to non-heme iron, which is found in plant foods. Non-heme iron is not absorbed by your body as efficiently as heme iron, the type of iron found in animal products 6.
Vitamin C binds with non-heme iron, making it much easier for your body to absorb. This is an important function, especially for individuals who get most of their iron from plant-based foods 7. However, individuals with conditions that increase the risk of iron accumulation in the body, such as hemochromatosis, should be cautious with vitamin C supplements. Under these circumstances, taking vitamin C in excess may lead to iron overload, which can cause serious damage to your heart, liver, pancreas, thyroid, and central nervous system 9 , 10 , Additionally, iron overload is more likely to occur when excess iron is consumed in supplement form.
Since vitamin C increases iron absorption, consuming too much of it is a concern for individuals with conditions that lead to iron accumulation in the body. Oxalate typically exits the body via urine. However, under some circumstances, oxalate may bind to minerals and form crystals that can lead to the formation of kidney stones Consuming too much vitamin C has the potential to increase the amount of oxalate in your urine, thus increasing the risk of developing kidney stones High vitamin C intake is not only associated with greater amounts of urinary oxalate but also linked to the development of kidney stones , especially if you consume amounts greater than 2, mg 6 , Reports of kidney failure have also been reported in people who have taken more than 2, mg in a day.
0コメント