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Jamun In English: Health Benefits Of Java Plum (Black Plum)

Ms. Ayesha Nasir

5 min read

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Jamun, also known as black plum, is a fruit native to India, Southeast Asia, and other tropical regions. It is a seasonal fruit that is usually available in the summer months. Jamun is an excellent source of nutrients and has many health benefits. Though it packs fructose and glucose, it is still low in calories. It contains high amounts of iron, potassium, proteins, vitamin C, carbohydrates, and magnesium. Jamun is perfect for healthy snacking due to its nutritional properties and has low calories. Keep reading to know about its benefits, side effects, and nutrition facts!

Health Benefits Of Jamun

Here are some health benefits of jamun:

1. Helps manage diabetes

Jamun is known to have hypoglycemic properties, which means it can help regulate blood sugar levels. This fruit helps to convert carbohydrates to energy and regulates blood sugar levels. The fruit contains anthocyanins, pigments that give the fruit its dark color. These pigments help enhance the production of insulin, which is essential for people with diabetes. Due to the low glycemic index, diabetic patients should consume Jamun during summer. It reduces diabetic symptoms, such as excessive urination or pushing.   

2. Improves digestion

Jamun has a high fiber content, making it an excellent food for digestion. The fiber in the fruit helps in regulating bowel movements and prevents constipation. It also contains digestive enzymes that help food breakdown and improve nutrient absorption.

3. Boosts immunity

Jamun is rich in antioxidants that can boost the immune system and prevent diseases. They protect the body against free radicals that can damage cells and cause diseases such as cancer. The high vitamin C content in the fruit also helps strengthen the immune system.

4. Prevents cancer

Jamun also has anti-cancer properties. Studies have shown that the fruit contains compounds that can prevent the growth of cancer cells. The high fiber content in the fruit also helps in preventing colon cancer.

5. Improves heart health

Jamun is an excellent potassium source, which is essential for heart health. Potassium helps in regulating blood pressure and prevents the risk of heart disease. Jamun is a rich source of minerals beneficial for people with heart disease. It also helps reduce the risk of blood pressure, stroke, hypertension, and other cardiovascular disease. It can also help prevent plaque buildup in the arteries. Regular use of jamun helps to manage blood sugar and cholesterol levels.

6. Helps in weight loss

Jamun is low in calories and high in fiber, making it an excellent food for weight loss. The high fiber content in the fruit helps keep you full for longer, reducing the urge to snack on unhealthy foods. Some nutrients in jamun may also help in losing weight while reducing water retention. Though jamun alone is not sufficient for losing weight and requires exercise and a diet plan from the Best Nutritionist in Karachi.

7. Improves skin health

Jamun contains vitamins A and C, which are essential for skin health. Vitamin C helps in the production of collagen, which is vital for skin elasticity. Vitamin A helps in preventing skin damage and reducing the appearance of wrinkles. Moreover, antioxidants in Jamun can improve your skin’s texture and keep it youthful.

8. Helps manage respiratory problems

Jamun has anti-inflammatory properties that help manage respiratory problems like asthma and bronchitis. The fruit contains bioactive compounds that can reduce inflammation in the airways and improve lung function.

9. Reduces the risk of liver disease

Jamun contains compounds that can protect the liver against damage. It lowers oxidative stress and inflammation in the liver due to its anti-inflammatory properties. More research is required to determine the full effects of Jamun on liver

10. Improves brain function

Jamun contains compounds that can improve brain function and prevent cognitive decline. The fruit is high in anthocyanins, which can enhance memory and learning. The high antioxidant content in Jamun also helps protect the brain against oxidative stress.

Side Effects Of Jamun

While jamun may be safe to consume in moderate amounts, consuming too much of this fruit can have some negative consequences.

1. Hypoglycemia

Jamun is known for its ability to lower blood sugar levels, which makes it an effective natural remedy for diabetes. However, when consumed in large quantities or combined with other blood sugar-lowering medications, it can cause hypoglycemia – a condition in which blood sugar levels drop too low. Symptoms of hypoglycemia include dizziness, confusion, weakness, and seizures.

2. Allergic reactions

Some people may be allergic to jamun or its components, such as the seeds, skin, or pulp. Some common signs of an allergic reaction are hives, rashes, breathing issues, and swelling. Rush to the nearest hospital if you feel the symptoms of an allergic reaction.

3. Stomach problems

Jamun has a high fiber content, which can help regulate bowel movements and prevent constipation. However, eating excessive jamun can cause digestive problems such as diarrhea, bloating, and stomach cramps.

4. Tooth decay

Jamun is high in natural sugars, which can stick to the teeth and promote the growth of bacteria that cause tooth decay. Consuming jamun in moderation and brushing your teeth regularly can help prevent this.

5. Drug interactions

Jamun can interact with certain medications, such as blood thinners and anti-diabetic drugs, and may affect their effectiveness. It is crucial to consult a doctor before consuming jamun if you take any medications.

6. Kidney problems

Jamun has a diuretic effect, which can increase urine output and help flush out toxins from the body. However, when consumed in excess, it can put a strain on the kidneys and worsen existing kidney problems.

7. Skin irritation

The skin of Jamun contains a chemical called tannin, which can cause skin irritation and allergic reactions in some people. It is critical to wash the fruit thoroughly before consuming it to remove any residue.

8. Respiratory problems

Jamun contains a compound called jambosine, which has a mild sedative effect on the respiratory system. While this can benefit people with asthma or other respiratory problems, it can also cause drowsiness and impaired breathing when consumed excessively.

9. Low blood pressure

Jamun can lower blood pressure, which can benefit people with hypertension. However, when consumed in large quantities or combined with other blood pressure-lowering medications, it can cause blood pressure to drop too low, leading to dizziness and fainting.

10. Interference with pregnancy

Jamun has been found to have abortifacient properties, which means it can induce abortion or cause miscarriage. Pregnant women should avoid consuming jamun or consult a doctor before doing so. Jamun can be tricky during pregnancy. It has many benefits, but overeating may cause health issues.

Nutritional Facts Of Jamun

Jamun is a low-calorie fruit, with 100 grams of the fruit providing only 60 calories. The fruit is also low in fat, with only 0.2 grams of fat per 100 grams of fruit. The fruit is an excellent source of dietary fiber, with 100 grams of fruit providing 1.4 grams of fiber.


Jamun is a rich source of carbohydrates, with 14 grams of carbohydrates per 100 grams of fruit. The fruit is low on the glycemic index, with a GI of 35. It takes your body time to absorb carbs and helps regulate blood sugar levels.


Jamun is a low-protein fruit, with only 1 gram of protein per 100 grams. However, the protein in the fruit is high quality, with all essential amino acids in the right proportions.


Jamun is an excellent source of vitamins, especially vitamin C. 100 grams of fruit provide 18 milligrams of vitamin C, which is 20% of the recommended daily intake. Vitamin C is a powerful antioxidant that helps boost the immune system and prevents cell damage. The fruit is also rich in vitamin A, providing 55 international units (IU) per 100 grams of fruit. Vitamin A is essential for improving and maintaining eye and skin health.


Jamun is a rich source of minerals, especially potassium. A 100 grams of fruit provides 79 milligrams of potassium, 2% of the recommended daily intake. Potassium is essential for regulating blood pressure, maintaining heart health, and preventing muscle cramps. The fruit is also a good source of calcium, providing 15 milligrams per 100 grams of fruit. Calcium is essential for maintaining healthy bones and teeth.


Jamun is a rich source of antioxidants, especially anthocyanins. These are pigments that give the fruit its dark color. Anthocyanin help protects the body against free radicals, which can cause cell damage and lead to diseases like cancer and heart disease. Jamun also contains other antioxidants, like polyphenols and flavonoids, which helps in improving overall health.

Other Nutrients

Jamun also contains other essential nutrients like iron, magnesium, and phosphorus. A 100 grams of fruit provides 0.19 milligrams of iron, which is essential for maintaining healthy blood cells. The fruit also provides 15 milligrams of magnesium and 17 milligrams of phosphorus, which is essential for maintaining healthy bones and teeth.

Jamun in English

Jamun in English goes by many names. It is commonly known as Java plum, Black plum, or Malabar plum in English. The scientific name for Jamun is Syzygium cumini. The summer fruit is world-renowned for its many medicinal and therapeutic benefits. It is a dark, purple-colored juicy fruit with a unique sweet, sour, and tart flavor.


Jamun is a delicious fruit that packs nutrients and provides many health benefits. It can help manage diabetes, improve digestion, boost immunity, prevent cancer, improve heart health, aid in weight loss, improve skin health, manage respiratory problems, reduce the risk of liver disease, and improve brain function. Incorporating Jamun into your diet can help improve your overall health and well-being.

Jamun is a nutritious and beneficial fruit, but it can also have side effects when consumed in excess or in combination with certain medications. It is a must to consume jamun in moderation and consult a doctor before eating them, so if you have any underlying medical conditions or are taking any medications.

Disclaimer: The contents of this article are intended to raise awareness about common health issues and should not be viewed as sound medical advice for your specific condition. You should always consult with a licensed medical practitioner prior to following any suggestions outlined in this article or adopting any treatment protocol based on the contents of this article.

Ms. Ayesha Nasir
Ms. Ayesha Nasir - Author Ms. Ayesha Nasir is a very well known dietitian and nutritionist in Lahore thanks to her numerous television appearances and a stellar reputation. She has appeared on City@10 as an expert guest numerous times and is also currently regularly seeing new patients.

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