Custard Apple Calories & Nutrition Calculator
Also known as: Sitaphal, Sugar Apple, Sweetsop, Annona squamosa, Sharifa, Ata Fruit, Seetaphal
Quick Answer — 1 medium custard apple pulp (135g)
Nutrition Calculator
2.06g Protein per 100g — The Highest Protein Among Common Tropical Fruits and Nearly 8x More Than Apple
Custard apple pulp delivers 2.06g protein per 100g — among the highest for any common fresh fruit. For comparison: banana has 1.09g, mango 0.82g, apple 0.26g, papaya 0.47g, and jackfruit 1.72g. Only avocado (1.96g), blackberry (1.39g), and passion fruit (2.20g) are in the same range among fruits commonly consumed [1].
One medium custard apple's edible pulp (approximately 135g — a whole fruit is ~300g but only 45-55% is edible) provides 2.8g protein — more than a cup of grapes (1.1g) or two medium peaches (1.8g combined). The amino acid profile includes measurable tryptophan (9-10mg/100g) and lysine (54-69mg/100g).
For food journaling, custard apple's protein is a genuine bonus — not a primary protein source but a meaningful fruit-based contribution. When combined with milk in a sitaphal milkshake, the protein content becomes substantial (5-6g per serving).
4.4g Fiber per 100g (16% DV) — Ranking Custard Apple Among the Top 5 Fiber-Dense Tropical Fruits per Serving
Custard apple has 4.4g fiber per 100g — 16% of the daily value. This ranks among the highest for tropical fruits: ahead of mango (1.6g), papaya (1.7g), banana (2.6g), and jackfruit (1.5g). Only avocado (6.8g) and guava (5.4g) surpass it among commonly eaten tropical fruits [1].
One medium custard apple's pulp (135g) delivers 5.9g fiber — 21% of the daily value — making it a significant fiber contributor from a single fruit serving. The fiber is a mix of soluble pectin from the creamy pulp and insoluble fiber from the granular pulp structure.
For food journaling, custard apple's fiber-per-calorie ratio (0.047g/kcal) is better than banana (0.029), mango (0.027), and grapes (0.013), though below blackberry (0.123) and raspberry (0.098). The creamy texture doesn't suggest high fiber, but the data confirms it.
36.3mg Vitamin C (40% DV) per 100g — More Than Orange Juice Concentrate and a Standout for a Seasonal Indian Fruit
Custard apple provides 36.3mg vitamin C per 100g — 40% of the daily value. This places it ahead of lemon (29mg), pineapple (47.8mg is higher, but per calorie custard apple is comparable), and roughly equal to lychee (33.7mg). One medium custard apple (135g pulp) delivers 49mg vitamin C — more than half the daily requirement [1].
Published analyses of Indian custard apple varieties show vitamin C ranging from 34.7 to 42.2mg per 100g pulp, suggesting the 36.3mg value is a reasonable central estimate. Vitamin C degrades rapidly after the fruit is cut and exposed to air — the creamy pulp oxidizes quickly, turning brown.
For food journaling, custard apple's vitamin C is best preserved when eaten immediately after opening. The traditional Indian practice of scooping and eating sitaphal immediately rather than pre-cutting it actually optimizes vitamin C retention.
94 kcal per 100g at 23.6g Carbs — A Calorie Density Between Banana and Mango That Makes Portion Awareness Valuable
Custard apple has 94 kcal per 100g — higher than most fresh fruits: apple (52 kcal), orange (47 kcal), mango (60 kcal), banana (89 kcal), and papaya (43 kcal). Only jackfruit (95 kcal) is comparable among common fresh fruits. The carbohydrate content of 23.6g per 100g places custard apple alongside banana (22.8g) and jackfruit (23.3g) as one of the carb-densest fresh fruits [1].
One medium custard apple (135g edible pulp) has 127 kcal and 31.9g carbohydrates — roughly equivalent to 1.5 medium bananas in caloric terms. The sugar content is approximately 18g per 100g (76% of total carbs), with the remainder as starch and fiber.
For food journaling, custard apple's calorie density means a whole medium fruit is a 127-calorie commitment. The creamy, soft texture can make it feel lighter than it is. Weigh the edible pulp (not the whole fruit with skin and seeds) for accurate logging.
Only 45-55% Edible — The Hidden Weight Trap That Makes Whole-Fruit Calorie Estimates Unreliable
A whole custard apple typically weighs 250-350g, but only 45-55% is edible pulp — the rest is thick skin (30-35%) and large black seeds (15-20%). A 300g whole custard apple yields approximately 135-165g of edible pulp (127-155 kcal). This means the whole-fruit weight is roughly double the edible weight [2].
The seeds are hard, black, and inedible — each fruit contains 30-40 seeds. Unlike jackfruit seeds (which are edible when cooked), custard apple seeds should not be consumed. When logging food, weigh only the scooped pulp, not the whole fruit.
For food journaling, if you're estimating from a whole custard apple: take the whole-fruit weight and multiply by 0.50 to get approximate pulp weight. A '300g custard apple' = ~150g pulp = ~141 kcal, 3.1g protein, 6.6g fiber. This edible-fraction estimation is important for accurate calorie tracking.
Custard Apple vs Other Tropical Fruits Popular in India — per 100g Raw
| Nutrient | Custard Apple | Mango | Banana | Papaya | Jackfruit |
|---|---|---|---|---|---|
| Calories (kcal) | 94 | 60 | 89 | 43 | 95 |
| Protein (g) | 2.06 | 0.82 | 1.09 | 0.47 | 1.72 |
| Total Fat (g) | 0.29 | 0.38 | 0.33 | 0.26 | 0.64 |
| Carbs (g) | 23.6 | 15.0 | 22.8 | 10.8 | 23.3 |
| Fiber (g) | 4.4 | 1.6 | 2.6 | 1.7 | 1.5 |
| Vitamin C (mg) | 36.3 | 36.4 | 8.7 | 60.9 | 13.7 |
| Calcium (mg) | 24 | 11 | 5 | 20 | 24 |
| Potassium (mg) | 247 | 168 | 358 | 182 | 448 |
Practical Tips for Custard Apple
- 1
One medium custard apple yields ~135g edible pulp = 127 kcal. The whole fruit (300g) is only 45-55% edible — the rest is inedible skin and seeds. Weigh the pulp, not the whole fruit, for accurate journaling.
- 2
Custard apple has 2.06g protein per 100g — among the highest for any common fruit. One medium fruit provides 2.8g protein — more than most other fruits. This makes it a meaningful contributor to fruit-based protein intake.
- 3
At 4.4g fiber per 100g (16% DV), custard apple outperforms banana, mango, and papaya for fiber. One medium fruit delivers 5.9g fiber — 21% DV. The creamy texture belies the substantial fiber content.
- 4
Eat sitaphal immediately after opening for maximum vitamin C (36.3mg/100g). The pulp oxidizes and browns quickly once exposed to air. Pre-cutting and storing significantly reduces vitamin C content.
- 5
Custard apple season in India is typically August-November. This is a highly seasonal fruit — availability outside this window is limited. The calorie and nutrient data apply to ripe, soft fruit ready to eat.
Frequently Asked Questions — Custard Apple
How many calories are in a custard apple?
Is custard apple high in sugar?
What is the difference between custard apple and sugar apple?
How much protein does custard apple have?
When is custard apple season in India?
Important Notice
Nutritional values are based on USDA FoodData Central data for sugar-apples/sweetsop, raw (FDC #173951) and FAO/INFOODS food composition data. This calculator is for informational and nutrition journaling purposes only — it is not a substitute for guidance from a qualified nutrition professional.
About the Author

Certified fitness professional and nutrition researcher with over 10 years of experience in the fitness and wellness industry. Founder of Food Nutrify, dedicated to making accurate, science-backed nutrition data accessible to everyone through free, easy-to-use calculators.
References & Sources
- [1] USDA FoodData Central (2024). Sugar-apples (sweetsop), raw (FDC #173951). U.S. Department of Agriculture, Agricultural Research Service.
- [2] Morton JF (1987). Sugar Apple — Annona squamosa L.. Fruits of Warm Climates, Julia F. Morton, Miami, FL, p. 69-72.
- [3] FAO/INFOODS (2024). Sugar apple, pulp, raw — Food Composition Database. Priority Food Tree and Crop Food Composition Database.
- [4] Longvah T, Ananthan R, Bhaskarachary K, Venkaiah K (2017). Indian Food Composition Tables (IFCT 2017). National Institute of Nutrition, ICMR, Hyderabad.