Nutritional informationNo kitchen is complete if no onions. Perhaps they will mourn, but are on your side when it comes to health. Both white as purple or red have vitamin A, B and C, calcium, magnesium, phosphorus, iron and potassium. Its main assets are alliin and allicin, the component attributed to them several medicinal properties including anti-inflammatory and antioxidant effect.
Richer in antioxidantsThe purple or red onion is richer in antioxidants than white, since it contains anthocyanins, the pigments responsible for red or purple and help prevent cancer and heart disease; also they help to preserve memory, urinary tract care and slow the aging process.
It contains more quercetin
The purple or red onion contains a greater amount than white, quercetin, a nutrient with powerful antioxidant that helps protect cells against oxidative damage and prevent malignant tumors, also has anti-inflammatory anti allergic effect, and promotes circulation blood. Quercetin has been used as therapy for cardiovascular disease, high cholesterol, diabetes, cataracts, inflammation, among others.
Ally against diabetes
Red onion would be an effective natural remedy to regulate blood glucose levels in people living with diabetes. According to researchers at the University of Gezira, Sudan, the glucoquinine as well as its rich content of flavonoids and sulfur, they have hypoglycemic effect and stimulate the secretion of pancreatic juice which helps break down fats, proteins and carbohydrates in food.
To prevent osteoporosis
A good way to treat osteoporosis naturally is increasing consumption of red onion. According to researchers bone biology at the University of Bern, Switzerland, it increases bone density with a higher calcitonin, which is the drug most widely used to treat osteoporosis that often occurs as a result of menopause benefit.
For a good digestion
The onion is a great friend of our digestive system, fights constipation and helps prevent intestinal parasites, thanks to its rich content in quercetin. Furthermore, quinine containing stimulates liver, gallbladder, pancreas and stomach promotes the functions and has a neutralizing effect of the acid, which activates the secretion of gastric juices favoring healthy gut flora.
Cholesterol at bay
The white onion is one of the most powerful cardio protective that exist in nature. Allinase containing enzyme helps thin the blood and reduce levels of "bad" cholesterol, which maintains the elasticity of arteries and clean the grease. A study by the University of Pennsylvania says that eating a medium onion a day reduces cardiovascular risk and cholesterol by 15%.
Besides making us mourn, it appears that white onion or purple can be very effective in the fight against cancer. A group of scientists from the Autonomous University of Madrid found that the outer skin of the onion is rich in a group of substances that help prevent cancer. Sulfur compounds, quercetin and selenium would be useful in cancer prevention by its antioxidant effects.
White and purple onions are rich in sulfur compounds that are part of its essential oil and are responsible for its characteristic odor and flavor. Alilpropilo disulfide containing contributes to increase the production of red and white blood cells which makes the defensive effectiveness of our body is raised, also gives bactericidal and fungicidal properties that help remove many viruses.
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