African Star Apple (Agbalumo): Planting, Health Benefits and Side Effects.

Star Apple, also known as African star Apple is the English name for Agbalumo or Udara a seasonal fruit found in tropical regions of Africa. 

It is known for its unique flavour, nutritional value, and medicinal properties. 

In this blog post, we will provide a comprehensive guide on how to care for this fruit and tree, as well as discuss the various health benefits and potential side effects of consuming this delicious fruit. 

If you are a lover of fruit or just exploring new and healthy food options, this is for you!

Quick Overview of African Star Apple

Scientific NameChrysophyllum cainito
Common NamesChrysophyllum, Agu, Star Apple, Agbalumo, Udara, Udala, African Cherry.
OriginWest Africa
Growth RateModerate to slow
Growth Climate and TemperatureHumid climate. 20°C to 35°C
Soil pH5.5 to 6.5
Fertilizerslow-release fertilizer but not necessary
WateringRegular watering. Avoid Waterlogging
Pests and Diseasesfruit flies, mealybugs, and leaf spots

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Star Apple (Agbaluma/Udara). Appearance and Taste.

purple star apple fruit. Agbalumo

Agbalumo or Udara is a seasonal fruit native to tropical regions of West Africa, including Nigeria, Ghana, and Cameroon. 

It is a member of the family Chrysophyllum and is widely cultivated for its delicious and unique flavour.

The fruit is typically round or oblong, with a tough outer skin that ranges in colour from green to yellow or purple when ripe. The flesh of the fruit is white or cream-coloured and has few seeds. 

The fruit has a sweet and tangy flavour often compared to a combination of pineapple, mango, and citrus.

There are several varieties of Star Apple, including the purple and green-skinned varieties.

The purple variety is sweeter and more flavorful, while the green variety is sour and less sweet.

It is believed to have originated in West Africa and has since spread to other tropical regions around the world, including South America and Southeast Asia. It is still eaten and enjoyed for its delicious taste and numerous health benefits.

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Health Benefits of eating African Star Apple (Agbalumo)

Agbalumo. star apple fruit

Agbalumo or Udara is a highly nutritious fruit that provides a variety of health benefits. Below, we discuss some of the health benefits of this fruit and the nutritional content of its seeds and plant.

What are the Health Benefits of Star Apple (Agalumo/Udara)?

Here are some of the key health benefits of eating Agbalumo:

  • Boosting immune system
  • Regulating blood sugar level
  • Promoting healthy skin
  • Supporting weight loss
  • Improving eye health
  • Improves digestion
  • Supports bone health
  • Reduces inflammation
  • Supports heart health

Boosts immune system

 African Star Apple is rich in vitamin C, which can help to boost the immune system and protect against infections and diseases like scurvy.

Improves digestion

 The fruit contains dietary fibre, which can promote healthy digestion and prevent constipation.

Supports bone health

 African Star Apple is a good source of calcium, which is important for strong and healthy bones.

Reduces inflammation

 The fruit is rich in antioxidants, which can help to reduce inflammation and protect against chronic diseases like cancer, diabetes, and heart disease.

Supports heart health

 African Star Apple contains potassium, which is important for maintaining healthy blood pressure levels and reducing the risk of heart disease.

Improves skin health

 African Star Apple is rich in vitamin A, which is important for healthy skin, hair, and nails.

Regulating blood sugar levels

 Udara has a low glycemic index, which means it can help to check blood sugar levels and may be beneficial for people with diabetes.

Supporting weight loss

 The fruit is low in calories and rich in dietary fibre, which can help to promote feelings of satisfaction and support weight loss.

Improving eye health

 Agbalumo is a good source of vitamin A, which is important for maintaining healthy eyesight and preventing age-related macular degeneration.

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What Nutrients are in Agbalumo/ Udara

star apple tree

Agbalumo or Udara is a highly nutritious fruit that is packed with vitamins, minerals, and antioxidants. 

Here are some of the key nutritional components of the fruit:

  • Vitamin A: Star Apple is a good source of vitamin A, which is important for eye health, immune function, and skin health.
  • Vitamin B: Udara contains several types of vitamin B, including thiamine (B1), riboflavin (B2), and niacin (B3), which play important roles in energy production, brain function, and healthy skin, hair, and nails.
  • Vitamin C: Agbalumo is an excellent source of vitamin C, which is important for immune function and skin health. It contains more Vitamin c and ascorbic acid than orange.
  • Iron: The fruit contains significant amounts of iron, which is essential for the production of red blood cells and oxygen transport in the body.
  • Calcium: The fruit is a good source of calcium, which is important for bone health and muscle function.
  • Antioxidants: The fruit is rich in antioxidants, including polyphenols and flavonoids, which help to protect the body against oxidative stress and inflammation.
  • Dietary fibre: The pulp of this fruit has dietary fibre, which promotes digestive health and can help to reduce cholesterol levels.
  • Potassium: The fruit contains potassium, an important electrolyte that helps to regulate fluid balance, muscle function, and blood pressure in the body.
  • Magnesium: Agbalumo is a good source of magnesium, an essential mineral that is involved in many important processes in the body, including nerve function, muscle contraction, and energy metabolism.

Growing African Star Apple (Agbalumo). How to Plant 

African Star Apple is a tropical fruit tree that is relatively easy to grow in warm, humid climates. 

Here are some tips for growing the tree:

Climate and soil

It thrives in warm, humid climates with temperatures ranging from 20°C to 35°C. The tree prefers well-draining, fertile soils with a pH of 5.5 to 6.5.


 The best time to plant African Star apples is at the beginning of the rainy season. Plant the seedling in a hole that is twice as wide and deep as the root ball, and water well after planting.


African Star Apple requires regular watering, especially during the dry season. Water deeply and regularly to keep the soil moist but not waterlogged.


 The plant responds well to regular fertilization with a balanced, slow-release fertilizer. Apply fertilizer every three months during the growing season.


 Prune the tree regularly to promote healthy growth and fruit production. Remove dead or damaged branches, and trim the tree to maintain its desired shape and size.

Pests and diseases

 Star Apple plants are resistant to pests and diseases, but they can be susceptible to fruit flies, mealybugs, and leaf spots. Monitor the tree regularly and treat any infestations with insecticide.

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Side Effects of African Star Apple (Agbalumo)

Agbalumo stomach upset

Star Apple is a highly nutritious and delicious fruit, it is important to note that consuming it in excess can cause some side effects. 

Here are some potential side effects of African Star Apple:

  1. Dental issues: African Star Apple is high in sugar, and consuming it in excess can lead to dental problems such as sensitive or shocking teeth, tooth decay and cavities. 
  2. Upset stomach: Eating too much African Star Apple can cause digestive issues such as bloating, gas, and diarrhoea.
  3. Allergic reactions: Some people may be allergic to African Star Apple, and consuming it can cause symptoms such as hives, itching, and swelling.
  4. Hypoglycemia: While African Star Apple can help regulate blood sugar levels, consuming it in excess can cause a sudden drop in blood sugar levels, leading to hypoglycemia.
  5. Overconsumption during pregnancy: Pregnant women should consume African Star Apple in moderation, as overconsumption may lead to miscarriage or premature labour.
  6. There are medical claims that it reduces the production of reproductive hormones.
  7. African Star Apple contains compounds that can interact with certain medications and either enhance or reduce their effects. If you are scheduled for surgery, avoid consuming African Star Apple in the days leading up to the procedure, as it may interact with anaesthesia and other medications used during the surgery.

It is important to consume African Star Apple in moderation and consult with a healthcare professional if you experience any adverse effects.


Star Apple (Agbalumo) or Udara is a fruit that is not only delicious but also highly nutritious. From regulating blood sugar levels to improving eye health, the health benefits of Agbalumo are numerous. 

However, as with any good thing, too much of it can be harmful. Overconsumption can lead to dental issues, upset stomach, allergic reactions, hypoglycemia, interference with medication, and even pregnancy complications. 

So, if you’re planning to indulge in this tasty fruit, do it in moderation and always consult with a healthcare professional if you have any concerns.

If you’re interested in growing your own African Star Apple tree, the process is easy as long as you provide the tree with the right conditions.

Udara, Star Apple or Agbalumo is a fruit worth trying for its unique flavour and health benefits.

So go ahead, plant a tree, savour the taste, and enjoy the benefits, but always be mindful of your consumption and stay healthy!

FAQs About Agbalumo (Udala).

Edet Ubok-Obong
Edet Ubok-Obong

Edet Ubok-Obong is an experienced Writer with a deep passion for Gardening, Fishing and home improvement. He shares his knowledge of these fields through this website.