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Most people know that fruit is good for you. But some may not know that oranges have been proven especially effective in preventing certain types of disease. Oranges are high in vitamins and minerals that boost your body's natural defenses and help fight against heart disease and anemia. However, they also have a high acid content which may irritate some preexisting conditions. Before you decide whether oranges are the best fruit to supplement your diet, talk to your doctor about any possible complications or side effects.
An average orange contains approximately 70 mg of vitamin C, which is over 75 percent of the recommended daily value. This vitamin acts as an antioxidant that inhibits the damage caused by free radicals, which are oxidizing molecules formed by natural processes, such as digestion. Vitamin C also aids in the body's healing process and helps to form and repair skin, tendons, ligaments and bones. Oranges are also a good source of dietary fiber, vitamin B1 and folate.
- An average orange contains approximately 70 mg of vitamin C, which is over 75 percent of the recommended daily value.
Decreased Risk of Heart Disease
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While scientists are still uncertain of the exact mechanisms that make oranges and other citrus fruits effective for decreasing the risk of cardiovascular disease, it appears that folate plays a major role. Folate reduces the presence of homocysteine, which is toxic to the vascular walls. The American Heart Association recommends that heart patients "should be strongly advised ... to get enough folic acid and vitamins B-6 and B-12 in their diet." The Linus Pauling Institute cites studies in which greater intake of vitamin C correlates with lower rates of coronary heart disease 2. It is possible, therefore, that Vitamin C and folate together may help reduce your chances of having heart-related illnesses such as heart attack and stroke.
- While scientists are still uncertain of the exact mechanisms that make oranges and other citrus fruits effective for decreasing the risk of cardiovascular disease, it appears that folate plays a major role.
- It is possible, therefore, that Vitamin C and folate together may help reduce your chances of having heart-related illnesses such as heart attack and stroke.
Decreased Risk of Anemia
Some forms of anemia are genetic, but others are caused by a lack of proper nutrition. Oranges can help prevent against these forms by providing folate, which your body needs to produce red blood cells. The vitamin C in oranges can also increase the absorption of the inorganic iron found in plants, which can supplement the more easily absorbed meat-based iron. Proper iron levels allow your body to manufacture hemoglobin, which is the molecule that delivers oxygen to the rest of your body.
- Some forms of anemia are genetic, but others are caused by a lack of proper nutrition.
- Proper iron levels allow your body to manufacture hemoglobin, which is the molecule that delivers oxygen to the rest of your body.
Fruits That Do Not Contain Folate
Oranges are acidic fruits, which can complicate some existing disorders, including heartburn, or acid reflux, in which your stomach acid moves into your esophagus, causing chest pain. Oranges may also cause abdominal pain in people who have peptic ulcers. In rare cases, the chemical salicylate contained in oranges can cause an allergic reaction that may trigger asthma, eczema, sinusitis, hives or an upset stomach. In addition, some oranges and orange products may contain traces of pesticides, which are toxic to the human body. Children are especially vulnerable because they consume more oranges and orange juice in proportion to their body weight than adults do. According to a study done by the U.S. Department of Agriculture, approximately 1 percent of oranges contain this residue, which may cause delayed development, lung and nervous system damage or cancer in large quantities.
- Oranges are acidic fruits, which can complicate some existing disorders, including heartburn, or acid reflux, in which your stomach acid moves into your esophagus, causing chest pain.
- In addition, some oranges and orange products may contain traces of pesticides, which are toxic to the human body.
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- MedlinePlus: Vitamin C
- Oregon State University Linus Pauling Institute: Vitamin C
- Food and Agricultural Organization of the United Nations: Nutritional and Health Benefits of Citrus Fruits; C. Economos, et al.; 1998
- HealthAssist: Food Side Effects: Possible Negative Consequences of Eating
- Ulcer-Cure.com: The Symptoms of a Peptic Ulcer
- Anwar S, Ahmed N, Speciale A, Cimino F, Saija A. Bitter Orange (Citrus Aurantium L.) Oils. InEssential Oils in Food Preservation, Flavor and Safety. Academic Press. 2016; 259-268.
- Uwague A. Phytochemical Screening and Proximate Analysis of Sweet Orange (Citrus Sinesis) Fruit Wastes. International Journal of Scientific Research in Science and Technology. 2017; 3(7).
- Orange, raw. FoodData Central. U.S Department of Agriculture. Published April 1, 2019.
- Agricultural Research Service. Oranges, raw. U.S. Department of Agriculture. 2019.
- Cleveland Clinic. Improving Your Health With Fiber. 2019.
- Harvard Health Publishing. Glycemic index for 60+ foods. Harvard Medical School. 2020.
- Centers for Disease Control and Prevention. How to Use Fruits and Vegetables to Help Manage Your Weight. 2020.
- UCSF Health. Cholesterol Content of Foods. University of California San Fransisco. 2020.
- Health Essentials. 3 Vitamins That Are Best for Boosting Your Immunity. Cleveland Clinic. 2020.
- Agriculture Research Service. Banana, raw. U.S. Department of Agriculture. 2019.
- Kaczmarczyk MM, Miller MJ, Freund GG. The health benefits of dietary fiber: beyond the usual suspects of type 2 diabetes mellitus, cardiovascular disease and colon cancer. Metabolism. 2012 Aug 1;61(8):1058-66. doi:10.1016/j.metabol.2012.01.017
- Gupta C, Prakash D. Phytonutrients as therapeutic agents. Journal of Complementary and Integrative Medicine. 2014 Sep 1;11(3):151-69. doi:10.1515/jcim-2013-0021
- National Institutes of Health Office of Dietary Supplements. Vitamin C: Fact sheet for consumers. 2019.
- American Heart Association. How potassium can help control high blood pressure. 2016.
- Juraschek SP, Guallar E, Appel LJ, Miller ER. Effects of vitamin C supplementation on blood pressure: A meta-analysis of randomized controlled trials. Am J Clin Nutr. 2012;95(5):1079-88. doi:10.3945/ajcn.111.027995
- National Institutes of Health. Office of Dietary Supplements. Thiamin: Fact Sheet for Health Professionals. 2019.
- Weikel KA, Garber C, Baburins A, Taylor A. Nutritional modulation of cataract. Nutr Rev. 2014;72(1):30-47. doi:10.1111/nure.12077
- Imbard A, Benoist JF, Blom HJ. Neural tube defects, folic acid and methylation. International journal of environmental research and public health. 2013 Sep;10(9):4352-89. doi:10.3390/ijerph10094352
- Iorio RA, Del Duca S, Calamelli E, Pula C, Lodolini M, Scamardella F, Pession A, Ricci G. Citrus allergy from pollen to clinical symptoms. PLoS One. 2013;8(1):e53680. doi:10.1371/journal.pone.0053680
- Hankinson A, Lloyd B, Alweis R. Lime-induced phytophotodermatitis. J Community Hosp Intern Med Perspect. 2014;4(4). doi:10.3402/jchimp.v4.25090
- Bailey DG, Dresser G, Arnold JM. Grapefruit–medication interactions: Forbidden fruit or avoidable consequences?. Cmaj. 2013 Mar 5;185(4):309-16. doi:10.1503/cmaj.120951
- Agriculture and Natural Resources. Oranges. University of California.
- Sir Elkhatim KA, Elagib RAA, Hassan AB. Content of phenolic compounds and vitamin C and antioxidant activity in wasted parts of Sudanese citrus fruits. Food Sci Nutr. 2018 May 8;6(5):1214-1219. doi:10.1002/fsn3.660
- UC Davis Health. Is Fruit Juice Bad for You and Your Children?
Kylene Arnold is a freelance writer who has written for a variety of print and online publications. She has acted as a copywriter and screenplay consultant for Advent Film Group and as a promotional writer for Cinnamom Bakery. She holds a Bachelor of Science in cinema and video production from Bob Jones University.