Flavonoids are responsible for pigments in many fruits and vegetables. Studies have shown that they may help reduce the risk of Parkinson's disease, cardiovascular disease and stroke. A particularly valuable flavonoid in onions is quercetin, which acts as an antioxidant that may be linked to preventing cancer. âIt also might have heart health benefits, though more studies need to be done,â said Angela Lemond, a Plano, Texas-based registered dietitian nutritionist and spokesperson for the Academy of Nutrition and Dietetics.
Magnetic resonance imaging (MRI) is very safe and most people can have the procedure, including pregnant women and babies. However, there are some instances where an MRI scan may not be recommended, because the strong magnets used during the scan can affect any metal implants or fragments in your body. Before having an MRI scan, you should tell medical staff if: you think you have any metal in your body. you're pregnant or breastfeeding.
Common Side Effects. The most common, so called normal, side effects of MRI contrast agent are mild and temporary in nature. They include pain or burning at the injection site, low blood pressure, minor skin rash, mild headaches, changes in blood clotting, lightheadedness and nausea.agnetic resonance imaging, or MRI, is a method of scanning the human body that provides clear, detailed pictures of organs and soft tissue. A contrast dye is sometimes used to enhance the quality of the scans, although most scans do not need it. The contrast makes it easier to see a tissue that is hard to detect.