Sugar apple or Sitaphal is a heart-shaped fruit with a thick skin on the outside. The edible portion of this fruit is creamy and granular.  Unripe sugar apple fruit is usually green while a dark green to brown in color. It is also commonly called the custard apple.

Sugar apples are widely grown in the tropical and subtropical parts of the world. The term sugar apple is applied to all the fruits of the Annona species. The immature part of the plant - the fruits, seeds, leaves, and roots are known for their medicinal uses, in both Ayurvedic and Unani system. They can easily be consumed raw, but these fruits are also used to make jams, jellies and ice creams.

Sugar apples have numerous health benefits for the heart, liver and are known for their anticancer and antimicrobial properties. They are rich in a variety of essential minerals and vitamins that helps in the proper functioning of the body.

Did you know?

Sugar apple seeds contain 30 percent oil. So, these find a variety of uses in the soap and paint industry. The seed cake of sugar apple is rich in nitrogen which used as a natural manure.

Some basic facts about sugar apple:

  • Scientific name: Annona Squamosa
  • Family Name: Annonaceae
  • Common name: Sugar apple, custard apple, Sitaphal in Hindi
  • Sanskrit Name: à¤¸à¥€à¤¤à¤¾à¤«à¤²( sItAphala or sitaaphala)
  • Native and geographical distribution: West Indies is said to be the native of this fruit. But later it moved through Central America and spread to southern Mexico. In India, the top producers of this fruit are  Tamil Nadu, 
  • Some interesting facts about sugar Apple: Sitaphal is known to have cousins named Ramphal (Annona reticulata) and Lakshman Phal (Annona muricata).  All these fruits are quite similar in look and taste and they have a variety of health benefits.
  1. Sugar apple nutrition facts
  2. Sugar apple health benefits
  3. Sugar apple side effects
  4. Takeaway

Sugar apples are a rich source of protein, carbohydrates, and fibre. They are also loaded with minerals such as calcium, phosphorus, and iron.  Sugar apples are considered as a good source of energy, 100g of sugar apple provides about 101-kilocalories.

The nutritional value of sugar apple per 100 grams according to the USDA Nutrient Database is as follows:

Nutrients Value per 100g
Water 71.50g
Energy 101 kcal
Protein 1.70 g
Fats 0.60 g
Carbohydrates 25.20 g
Fibre 2.4 g

 

Minerals Value per 100 g
Calcium 30 mg
Iron 0.71 mg
Magnesium 18 mg
Phosphorus 21 mg
Potassium 382 mg
Sodium 4 mg

 

Vitamins Value per 100 g
Vitamin A 2 µg
Vitamin B1 0.080mg
Vitamin B2 0.100 mg
Vitamin B3 0.500 mg
Vitamin B6 0.221 mg
Vitamin C 19.2 mg

 

Fats/ Fatty acids Value per 100 g
Saturated 0.231g

Sugar apple for diabetes

Diabetes is a condition wherein the body is unable to metabolise glucose. This glucose then stays in the bloodstream leading to increased blood sugar levels. many people all over the world are falling prey to this disease. Sitaphal is traditionally used in the treatment of diabetes. Studies indicate that sitaphal may exhibit antidiabetic properties by stimulating insulin production and improving glucose absorption in the body. Animal study suggests that blood sugar levels can be brought under control by using the aqueous extracts from sugar apple leaves. Additionally, the antioxidants present in sitaphal have also been found to reduce diabetic complications.

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Sugar apple exhibits anti-inflammatory properties

Inflammation is a condition where some part of the body may become swollen or reddened due to injury or infection. Mostly, inflammation is also associated with pain. Extracts of sugar apple leaves are known to reduce inflammation associated with wounds or injury. Preclinical studies have suggested that the sugar apple extracts can help subside the pain, as they possess important analgesic (pain relieving) and anti-inflammatory properties. Another study reported that the seeds of sugar apple fruit also exhibit anti-inflammatory properties.

(Read more: Inflammation treatment)

Sugar apple for heart

The right balance between potassium and sodium is very important for the proper functioning of the body. Any imbalance between these two minerals indicates a higher risk of heart disease. Sugar apple is known to contain a moderate amount of sodium and high amount of potassium. According to the Archives of Internal Medicine, a low sodium/potassium ratio plays an important role in decreasing the risk of., various cardiovascular diseases such as high blood pressure, heart attack, stroke, etc. Being rich in potassium, this fruit is very useful in maintaining the overall health of the body, especially the heart health. Sitaphal has high levels of magnesium in it which relaxes the muscles of the heart. So the chances of getting a heart attack and stroke may be minimized.

(Read more: Heart disease treatment)

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Sugar apple as an antimicrobial

Not all microbes are harmful to humans. But this fact can never be ignored that these microbes are also the causative agents of various diseases. There are many compounds found in plant extracts which possess potent antimicrobial properties. Studies indicate that petroleum ether extract and methanol extract (ME) of sugar apple leaf is helpful in inhibiting microbial growth. It has been further suggested that these extracts were more potent against a certain category of bacteria (gram-positive). This includes the common infectious bacteria like Bacillus subtilis and Staphylococcus epidermidis. In another study, the extracts of Sugar apple fruit were found to be helpful against both bacterial and fungal infections.

Sugar apple for liver

With the increased pace of human life, the dependency on medicines has increased as well. As a blood filter, liver is responsible for metabolizing all the toxic substances that enter the body. This includes medicine and drugs The liver breaks down such toxic substances so that they can easily pass through the urine instead of being deposited in the body. So, proper functioning of the liver is crucial for maintaining optimum health. In course of handling such processes, the liver tends to get deposited with some of those toxic substances. In a preclinical study, it was suggested that sugar apple extracts are considered to be effective and safe alternative treatment for such cases of liver toxicity. Though the extracts were not able to completely revert the conditions of liver toxicity it has been found to decrease it by good levels. According to a recent study, sugar apple seed extracts can efficiently reverse cell damage in liver.

(Read more: Liver disease types)

Sugar apple for ulcers

Ulcers can cause a lot of pain and burning. The body can develop ulcers either outside such as on a leg or arm or inside of the body such as in the stomach. Injuries, acidity, and infections are known to cause ulcers in the stomach. A chemical compound obtained from sugar apple twigs has been found to exhibit anti-ulcer activity by reducing the release of acid and pepsin (digestive enzyme) in the stomach. Though more methods to use sugar apple tree twigs for commercial extraction of this antiulcer compound are under study, research reveals sugar apple as a potent source, but yet to be fully exploited for its anti-ulcer properties.

(Read more: Peptic ulcer treatment)

Sugar apple for arthritis

Arthritis is a common disease which starts showing in the early 40s. The symptoms of this disease are pain, swelling and changes in the joints that limit movement. This disease is primarily seen to affect females. With no earlier warning, it can come on slowly or suddenly.and it usually lasts throughout life. Though many things can be done to help reduce pain, increase movement and keep the person active, arthritis can affect the muscles, organs and connective tissues. Extracts of sugar apple leaves were found useful as a treatment for arthritis. In a preclinical research, it was found that sugar apple extracts reduced the levels of inflammatory cytokines and increased antioxidant levels in the body. Together these factors lead to a reduction in arthritis symptoms. This gives a good reason to include sugar apple in the treatment of arthritis.

Sugar apple has antioxidant properties

Free radicals are the harmful substances in the body which attack the basic molecules like protein, DNA and lipid. An excess of free radicals can lead to serious cellular/tissue damage.To fight with such substances, our body needs antioxidants. Various studies have been done to test the antioxidant potential of sitaphal. Lab studies confirm the antioxidant potential of sugar apple extracts. According to an in vitro study, sugar apple mediates strong antioxidant activity due to the presence of certain phenolic compounds.

(Read more: Antioxidant rich foods)

Sugar apple for cancer

Tumour is an abnormal proliferation of body cells, which, when malignant ( is highly invasive in nature), is termed as cancer. Annona species is one of the many plants, whose extracts have been used for their anticancer properties. Different parts of the plant, especially the leaves, seeds, and bark have been found to inhibit the growth and spread of cancer. The compound called, acetogenins which are specific to the Annonaceous species  has been proposed as the reason for sugar apple’s anti-cancer property. In vitro studies suggest that the leaf extracts of sugar apple exhibit cytotoxic activity against skin cancer and colon cancer cell line. Seed extracts of sugar apple have also demonstrated some anti cancer activity against liver cancer cells. Scientists are looking forward to find the clinical applications of sugar apple for inhibiting cancer in the human population

Other benefits of sugar apple

  • Prevents premature labor
  • Helps in development of the brain in the fetus
  • Rejuvenates the skin
  • Helps in avoiding morning sickness
  • Keeps the skin youthful 
  • Leads to development of eye infections
    Sugar apple has been used for skin and hair treatment, particularly in the southern parts of India. However, in recent studies, the seeds of the sugar fruits were seen to cause serious eye infections within a few hours of exposure. Early symptoms of such infections were severe pain, watering, redness. It is advisable to be careful while using sugar apple seeds for topical treatment.
  • Uncontrolled consumption can lead to weight gain
    Eating anything under controlled and proper limits is beneficial. Though the USDA table shows minimal fat content in sugar apple, excess consumption may lead to weight gain and obesity. Weight gain can, in turn, increase the risk of various other health problems like high cholesterol, heart diseases, and diabetes.
  • The digestive system may be affected 
    Sugar apple has a good amount of dietary fibre which is beneficial for the digestive system. No doubt we can never ignore the good effect of fibres on our body but an excess of dietary fibres in our body may lead to the problems like malabsorption, diarrhea, intestinal blockage, constipation, and intestinal gas. Though much research work is to be done in this area, as always said, prevention is better than cure. 

It is true that sugar apple is tasty and very benefiting at the same time! It can do wonders for your body if consumed moderately. There are different varieties of sugar apple available in the market. The main three varieties, called as cousins of each other,  look and taste very much same. Sugar apple is an excellent antioxidant, anti-inflammatory, and antimicrobial. Going through the numerous benefits and few side effects of sugar apple, we encourage you to keep the intake level of this fruit moderate.

References

  1. United States Department of Agriculture Agricultural Research Service. Basic Report: 09086, Custard-apple, (bullock's-heart), raw. National Nutrient Database for Standard Reference Legacy Release [Internet]
  2. Muniyappa R, Madan R. Assessing Insulin Sensitivity and Resistance in Humans. 2018 Jul 10. In: Feingold KR, Anawalt B, Boyce A, et al., editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-.
  3. National Institutes of Health; [Internet]. U.S. Department of Health & Human Services; Sodium/Potassium Ratio Linked to Cardiovascular Disease Risk.
  4. United States Department of Agriculture Agricultural Research Service. Basic Report: 09086, Custard-apple, (bullock's-heart), raw. National Nutrient Database for Standard Reference Legacy Release [Internet]
  5. Wang DS et al. Annona squamosa Linn: cytotoxic activity found in leaf extract against human tumor cell lines. Pak J Pharm Sci. 2014 Sep;27(5 Spec no):1559-63. PMID: 25176251
  6. Chen Y et al. Anti-tumor activity of Annona squamosa seeds extract containing annonaceous acetogenin compounds. J Ethnopharmacol. 2012 Jul 13;142(2):462-6. PMID: 22609808
  7. Siti Mariam Abdul Wahab et al. Exploring the Leaves of Annona muricata L. as a Source of Potential Anti-inflammatory and Anticancer Agents . Front Pharmacol. 2018; 9: 661. PMID: 29973884
  8. Zahid M, et al. Hepatoprotective and antioxidant activities of Annona squamosa seed extract against alcohol-induced liver injury in Sprague Dawley rats. Drug Chem Toxicol. 2018.
  9. Yadav DK et al. Anti-ulcer constituents of Annona squamosa twigs. Fitoterapia. 2011 Jun;82(4):666-75. PMID: 21342663
  10. Irshad M, Chaudhuri PS. Oxidant-antioxidant system: role and significance in human body. Indian J Exp Biol. 2002 Nov;40(11):1233-9. PMID: 13677624
  11. Vikas B, Akhil B S, P R, Sujathan K. Free Radical Scavenging Properties of Annona squamosa . Asian Pac J Cancer Prev. 2017 Oct 26;18(10):2725-2731. PMID: 29072399
  12. Mariod AA et al. Antioxidant activity of different parts from Annona squamosa, and Catunaregam nilotica methanolic extract. Acta Sci Pol Technol Aliment. 2012 Jul-Sep;11(3):249-58. PMID: 22744945
  13. Harsha Nagaraja et al. Ocular toxicity by seeds of Annona squamosa (custard apple). Indian J Ophthalmol. 2016 Aug; 64(8): 611–613. PMID: 27688289
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