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  1. The health benefits of oranges
  2. Popular Posts
  3. Which Came First: Orange the Color or Orange the Fruit? | Mental Floss

As in Florida, California has sought emergency exemptions to allow antibiotics to be used on commercial citrus trees. So far, however, the only trees found to be infected have been non-commercial ones.

The health benefits of oranges

He says that he sampled bacteria on the leaves of uninfected citrus trees and in the soil around the roots before and after the trees were sprayed using the kind of schedule that citrus growers would — six times in a year, alternating between the two drugs to reduce the likelihood that bacteria would adapt. He found no change in the overall count or mix of bacteria, and no rise in resistance. He suggests that perhaps the antibiotics do not remain effective for long, because they are washed off by rain, degraded by sunlight or denatured by enzymes in the soil.

Virginia Stockwell, a plant pathologist at the US Department of Agriculture in Corvallis, Oregon — and, with LeJeune, a co-author of a white paper on the environmental effects of antibiotics see go. But that, too, is a hypothesis.

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Whether the drugs control the infection in the long term, and whether they provoke resistance at the same time, cannot be known until Florida or California begins spraying — and even then, little will be understood unless enterprising scientists measure the impact. The EPA has specified certain rules to reduce the risk of resistance emerging. Spraying is limited to a few times per year; farm workers must wear full protective clothing; and groves cannot be fertilized with uncomposted manure.

It has also set a deadline of seven years for re-evaluating the programme, half the time that it would normally impose for an agricultural chemical. Barring a regulatory change of heart, spraying is likely to increase. The long-term hope is that scientists can breed a tree that has protection against the bacterium. An essential round-up of science news, opinion and analysis, delivered to your inbox every weekday.

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PDF version. Lack of evidence There is little publicly available science on the long-term use of these drugs in crop settings. Nature Briefing An essential round-up of science news, opinion and analysis, delivered to your inbox every weekday. Also of note, a high potassium intake is associated with a 20 percent decreased risk of dying from all causes. According to a study published in the American Journal of Epidemiology , consuming bananas , oranges and orange juice in the first two years of life may reduce the risk of developing childhood leukemia.

As an excellent source of the strong antioxidant vitamin C, oranges can also help combat the formation of free radicals known to cause cancer. While an adequate vitamin C intake is necessary and very beneficial as an antioxidant, the amount necessary to consume for therapeutic purposes for cancer is more than we can consume. One study has concluded that vitamin C from oranges could one day be harnessed to impair colorectal cancer cells , but oranges worth of vitamin C would be needed. High fiber intakes from fruits and vegetables are associated with a lowered risk of colorectal cancer.

However, in , a study linked grapefruit and orange juice with a higher risk of skin cancer. Researchers found that people who consumed high amounts of whole grapefruit or orange juice were over a third more likely to develop melanoma , compared with those who consumed low amounts.

Which Came First: Orange the Color or Orange the Fruit? | Mental Floss

An increase in potassium intake along with a decrease in sodium intake is the most important dietary change that a person can make to reduce their risk of cardiovascular disease, according to Dr. Mark Houston, an associate clinical professor of medicine at Vanderbilt Medical School and director of the Hypertension Institute at St. Thomas Hospital in Tennessee. In one study, those who consumed mg of potassium per day had a 49 percent lower risk of death from ischemic heart disease compared with those who consumed less potassium about mg per day. High potassium intakes are also associated with a reduced risk of stroke, protection against loss of muscle mass, preservation of bone mineral density and reduction in the formation of kidney stones.

Studies have shown that type 1 diabetics who consume high-fiber diets have lower blood glucose levels and type 2 diabetics may have improved blood sugar, lipids and insulin levels. One medium banana provides about 3 grams of fiber. The antioxidant vitamin C, when eaten in its natural form as in an orange or applied topically, can help to fight skin damage caused by the sun and pollution, reduce wrinkles and improve overall skin texture. Vitamin C plays a vital role in the formation of collagen , the support system of your skin. One medium orange approximately grams contains 80 calories, 0 grams of fat, milligrams of potassium, 19 grams of carbohydrate 14 grams of sugar and 3 grams of dietary fiber as well as 1 gram of protein.

One orange provides percent of your vitamin C needs for the day, 2 percent of vitamin A needs, 6 percent of calcium and 0 percent of iron. Oranges also contain thiamin, riboflavin, niacin, vitamin B-6, folate , pantothenic acid, phosphorus, magnesium , manganese, selenium and copper. Because of their high vitamin C content over twice the daily need oranges are associated with boosting the immune system. Choline is an important nutrient found in oranges that helps with sleep, muscle movement, learning and memory.

Choline also helps to maintain the structure of cellular membranes, aids in the transmission of nerve impulses, assists in the absorption of fat and reduces chronic inflammation. Zeaxanthin and carotenoids have antioxidant effects and have been shown to have an inverse relationship with overall cancer rates and prostate cancer in particular. Oranges should be picked at their peak of ripeness because unlike some other fruits, they do not ripen or improve in quality after being picked. Oranges should be stored at room temperature, away from direct sunlight. While it is hard to find good fruits and vegetables in the winter, it is the perfect time to buy citrus.

Winter is the peak season for oranges and other citrus fruits. There are many different types of oranges available such as navel, mandarin, cara cara, blood oranges, Valencia and Seville oranges just to name a few. Some are very sweet and others have more of a sour taste. Beta-blockers , a type of medication most commonly prescribed for heart disease, can cause potassium levels to increase in the blood.

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High potassium foods such as oranges and bananas should be consumed in moderation when taking beta-blockers. Consuming too much potassium can be harmful for those whose kidneys are not fully functional. If your kidneys are unable to remove excess potassium from the blood, it could be fatal. However, the juice doesn't contain the fiber found in the orange pith, the white substance between the peel and the flesh. It's also easier to consume too many calories when drinking orange juice than when eating an orange, according to the U. Centers for Disease Control and Prevention.


Most citrus fruits have a good deal of vitamin C, and oranges have high levels even compared to their tangy brethren. Vitamin C, a potent antioxidant, protects cells by scavenging and neutralizing harmful free radicals, according to a review published in the journal Advances in Analytical and Pharmaceutical Chemistry. Free radicals are reactive atoms that can form from things such as environmental pollution, cigarette smoke and stress, and exposure to a high level of free radicals may lead to chronic conditions such as cancer and heart disease. The vitamin C in oranges may also boost a person's immunity to everyday viruses and infections such as the common cold, according to the same review. Some research suggests that the vitamin C in oranges may be linked with a lower risk of certain cancers. Studies have shown that about 10 to 15 percent of colon cancers have a mutation in a gene called BRAF. In addition, a study published in the journal Nutrition and Cancer found that the high amounts of vitamin C and folic acid, coupled with the antioxidant properties, in orange juice can reduce DNA damage and, therefore, the risk of cancer.

In addition to vitamin C, oranges contain fiber, potassium and choline, all of which are good for your heart. Potassium, an electrolyte mineral, is vital for the healthy functioning of the nervous system, and a lack of potassium can lead to arrhythmia an irregular heartbeat , increased blood pressure and a depletion of calcium in bones, according to the U. National Institutes of Health.