Impressive Health Benefits of Orange
Oranges are among the world's most popular fruits, which grow on
orange trees (Citrus x sinensis) and belong to a large group of fruits known as
citrus fruits. Their true origin is a mystery, but the cultivation of oranges
is thought to have started in eastern Asia thousands of years ago.Today, they
are grown in most warm regions of the world and consumed either fresh or as
juice. Oranges are a healthy source of fiber, vitamin C, thiamine, folate, and
antioxidants. They have multiple health benefits.
Nutrition facts
Here are the nutrients in about half of a large orange (100 grams).
- Calories: 47
- Carbs
- Carbs: 11.8 grams
- Fat: 0.1 grams
- Fiber: 2.4 grams
- Protein: 0.9 grams
- Sugar: 9.4 grams
- Water: 87%
Oranges are mainly composed of carbs and water, with very little
protein and fat and few calories. Simple sugars — such as glucose, fructose,
and sucrose — are the dominant form of carbs in oranges. They are responsible
for the fruit’s sweet taste. Despite their sugar content, oranges have a low
glycemic index (GI) of 31–51 (1). This is a measure of how quickly sugar enters
your bloodstream after a meal. Low GI values are associated with numerous
health benefits. Oranges’ low GI is explained by their high polyphenol and
fiber content, which moderates the rise in blood sugar.
Fiber
Oranges are a good source of fiber. One large orange (184 grams)
packs around 18% of the Reference Daily Intake (RDI). The main fibers found in
oranges are pectin, cellulose, hemicellulose, and lignin. Dietary fiber is
associated with many beneficial health effects, including improved digestive
health, weight loss, and cholesterol.
SUMMARY
Oranges are primarily made up of carbs and water. They’re also a
good source of fiber, which may support digestive health.
Vitamins and minerals
Oranges are a good source of several vitamins and minerals,
especially vitamin C, thiamine, folate, and potassium. Vitamin C. Oranges are
an excellent source of vitamin C. One large orange provides over 100% of the
RDI.
Thiamine. One of the B vitamins, also called vitamin B1, thiamine
is found in a wide variety of foods.
Folate. Also known as vitamin B9 or folic acid, folate has many essential
functions and is found in many plant foods.
Potassium. Oranges are a good source of potassium. High intake of
potassium can lower blood pressure in people who already have high levels and
may reduce your risk of heart disease.
SUMMARY
A number of vitamins and minerals are found in oranges, including
vitamin C, thiamine, folate, and potassium.
Other plant compounds
Oranges are rich in various bioactive plant compounds, which are
believed to be responsible for many beneficial health effects. The two main
classes of antioxidant plant compounds in oranges are carotenoids and phenolics
(phenolic compounds).
Phenolic
Oranges are an excellent source of phenolic compounds — especially
flavonoids, which contribute to most of their antioxidant properties. Hesperidin.
A citrus flavonoid that is one of the main antioxidants in oranges, hesperidin
is associated with several health benefits.
Anthocyanin
A class of antioxidant flavonoids, anthocyanin is responsible for
the red flesh of blood oranges.
Carotenoids
All citrus fruits are high in carotenoids antioxidants, which are
responsible for their rich color. Beta-cryptoxanthin. This is one of the most
abundant carotenoid antioxidants in oranges. Your body converts it into vitamin
A.
Lycopene.
An antioxidant found in high amounts in red-fleshed navel oranges
(Cara cara oranges), lycopene is also found in tomatoes and grapefruit. It has
various health benefits.
Citric acid
Oranges and other citrus fruits are high in citric acid and
citrates, which contribute to their sour taste. Research indicates that citric
acid and citrates from oranges may help prevent kidney stone formation.
SUMMARY
Oranges are a rich source of several plant compounds that are
responsible for many of their health benefits.
Evidence Base Health Benefits of Oranges
Human and animal studies indicate that regular consumption of
oranges is beneficial for health.
Heart health
Heart disease is currently the world's most common cause of
premature death. Flavonoids — especially hesperidin — in oranges may have
protective effects against heart disease. Clinical studies in humans note that
daily intake of orange juice for four weeks has a blood-thinning effect and may
reduce blood pressure significantly. Fibers also seem to play a role. Intake of
isolated fibers from citrus fruits has been shown to decrease blood cholesterol
levels. Taken together, it is likely that regular consumption of oranges may
help lower your risk of heart disease.
Kidney stone prevention
Oranges are a good source of citric acid and citrates, which are
believed to help prevent kidney stone formation. Potassium citrate is often
prescribed to patients with kidney stones. Citrates in oranges seem to have
similar effects.
Anemia prevention
Anemia is a condition characterized by low levels of red blood
cells or hemoglobin, decreasing its ability to carry oxygen. It is often caused
by iron deficiency. Although oranges are not a good source of iron, they are an
excellent source of organic acids, such as vitamin C (ascorbic acid) and citric
acid. Both vitamin C and citric acid can increase your body’s absorption of
iron from the digestive tract. When eaten with iron-rich food, oranges may help
prevent anemia.
SUMMARY
Oranges may benefit heart health and help prevent kidney stones.
While not rich in iron, they may also protect against anemia by increasing your
iron absorption.
Whole oranges vs. orange juice
Orange juice is a popular drink throughout the world. One of the
main differences between pure orange juice and whole oranges is that juice is
much lower in fiber. One cup (240 ml) of pure orange juice has a similar amount
of natural sugar as 2 whole oranges and is much less filling. As a result,
fruit juice consumption can often become excessive and may contribute to weight
gain and health problems. This applies especially to juice that contains added
sugar. Although quality orange juice can be healthy in moderation, whole
oranges are generally a much better choice.
SUMMARY
Eating whole oranges is healthier than drinking orange juice. Fruit
juices tend to be high in sugar and not as filling as whole fruit.
Adverse effects
Oranges don't have many known adverse effects. Some people have an
orange allergy, but this is rare. For people who experience heartburn,
consumption of oranges can make symptoms worse. This is because oranges contain
organic acids, mainly citric acid and ascorbic acid (vitamin C).
SUMMARY
Some people are allergic to oranges, and their acidity may increase
the symptoms of heartburn. However, oranges pose few health risks overall.
Conclusion
Oranges are among the world's most popular fruits, as they’re both
tasty and nutritious. They are a good source of vitamin C, as well as several
other vitamins, minerals, and antioxidants. For this reason, they may lower your
risk of heart disease and kidney stones. Put simply, this bright citrus fruit is an excellent
addition to a healthy diet.
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