Tropical Fruit
Langsat
Langsat is a low-calorie, sweet-sour tropical fruit rich in fiber and vitamin C, commonly grown in Southeast Asia.
Langsat is a sweet, slightly sour tropical fruit native to Southeast Asia, growing in clusters with thin, yellowish skin and translucent, juicy flesh.
moderate-calorie tropical fruit with sweet-sour flavor
Typical serving · 100g
Common varieties · langsat, duku, longkong, duku-langsat, paete +1 more
Overall context score across nutrition, safety, and diet fit
At a glance
Quick facts
Simple indicators based on nutrition, processing, and diet fit.
The story
What makes it unique
Langsat digests at a moderate pace due to its water content and dietary fiber, which slows the absorption of its natural sugars. It provides a moderate satiety response and is primarily composed of simple carbohydrates with minimal protein or fat. As a minimally processed whole food, it retains its natural nutrient matrix and phytochemicals.
Varieties: langsat · duku · longkong · duku-langsat · paete · ulam raja
Per 100g
Nutrition breakdown
Macro balance and key metrics at a glance.
Energy
Density 0.63 kcal/g
Protein
Carbs
Fat
Fiber
Sugar
12.2 g
Sodium
2 mg
Potassium
250 mg
Glycemic index
55
Glycemic load
8
Water content
80%
Standout compounds
Nutrient highlights
Vitamin C
moderateSupports immune function and skin health through antioxidant activity.
Dietary Fiber
moderatePromotes digestive regularity and slows sugar absorption.
Potassium
moderateHelps regulate blood pressure and supports proper muscle function.
Limonoids
lowNatural plant compounds with potential antioxidant and anti-inflammatory properties.
Thiamine
lowEssential for energy metabolism and nervous system function.
Wellness map
Health scores & processing
NOVA processing scale
minimally processed · Whole food
Whole, fresh langsat is an unprocessed raw fruit consumed in its natural state with no added ingredients.
Diet compatibility
- Weight loss
- Muscle gain
- Diabetes
- Gut health
- Low carb
- High protein
- Heart health
Relative standing
Food rankings
Qualitative ranks compared to similar whole foods.
- Satietygood
- Blood sugarmoderate
- Nutrient densitymoderate
- Fitness fuelmoderate
- Processing qualityexcellent
Eat with confidence
Food safety profile
Fresh langsat is generally safe to consume. The primary concern is potential pesticide residue on the skin, as the thin peel can retain agricultural chemicals. Internal contamination is rare due to the protective skin.
Evidence confidence 80%
- Pesticidesmoderate
- Antibioticslow
- Heavy metalslow
- Contaminationlow
Watch for
- pesticide residue
- surface dirt
- mold in overripe clusters
Safer choices
Organically grown langsat or thoroughly washed conventional fruit.
Prep tips
Wash the whole clusters thoroughly under running water before peeling to remove surface residue and prevent transfer to the flesh.
Standard agricultural residue monitoring applies; imported tropical fruits may have varying pesticide thresholds.
Deep dive
Health analysis
How this food may fit different goals and preparation choices.
Weight loss
Low energy density and moderate fiber help create a feeling of fullness without excessive calories, making it a reasonable snack for weight management.
Blood sugar
Contains moderate sugar levels with a likely medium glycemic index; portion control is advised for those monitoring blood glucose closely.
Fitness & energy
Provides quick-digesting carbohydrates for a mild energy boost, though it lacks the protein needed for muscle recovery.
Gut health
Dietary fiber supports healthy digestion and regular bowel movements, while the high water content aids hydration.
Processing quality
A whole, unprocessed fruit that retains its natural fiber and nutrient matrix without added sugars or preservatives.
Food safety
Generally safe when peeled, but the thin skin can harbor agricultural chemicals, making thorough washing essential.
Common mistakes
Eating the bitter seeds or getting the sticky latex from the skin on the flesh, which ruins the sweet flavor and can cause mild stomach upset if consumed in large amounts.
Best preparation
Peel carefully by pressing the skin to crack it open, removing the flesh while avoiding the bitter seeds and sticky latex.
Practical guide
Best use cases
When and how this food fits real eating patterns.
Low-calorie sweet snack
Satisfies sweet cravings with a relatively low calorie and sugar count compared to processed desserts.
Light pre-workout energy
Provides easily digestible carbohydrates for a quick energy boost before light to moderate exercise.
Digestive health support
The dietary fiber and high water content help promote regular bowel movements and support a healthy gut.
Balance sheet
Pros & cons
Upsides
- Low in calories and fat
- Good source of dietary fiber for digestive health
- Contains natural antioxidants like vitamin C
- Provides quick-digesting carbohydrates for energy
- Unprocessed whole food with no added sugars
Trade-offs
- Contains moderate sugar which can spike blood glucose
- Bitter seeds are inedible and must be avoided
- Sticky latex on the skin can make peeling messy
- Short shelf life and bruises easily
- Not suitable for strict low-carb or ketogenic diets
Fit check
Who is it for?
Great match
- weight management
- light sweet snacking
- pre-workout energy
- digestive regularity
Consider alternatives
- strict ketogenic diets
- severe diabetes management
- high-protein diets
- those sensitive to acidic fruits
Side by side
How it compares
Open the full head-to-head analysis for nutrition, safety, and practical tradeoffs.
This food
Langsat
VS95% alike
Compare with
Duku
Duku has thicker skin, less sticky latex, and a sweeter flavor, while langsat is slightly more tart and easier to peel.
Duku is sweeter and has less sticky latex, while langsat is slightly more tart and lower in calories, making langsat marginally better for weight loss.
This food
Langsat
VS90% alike
Compare with
Longkong
Longkong is typically latex-free and sweeter, whereas langsat has a more pronounced tartness and sticky skin.
Longkong is sweeter and latex-free, making it easier to eat, but langsat's slightly lower sugar content makes it a better choice for blood sugar control.
This food
Langsat
VS80% alike
Compare with
Rambutan
Rambutan is higher in sugar and vitamin C, while langsat is lower in calories and provides a slightly different texture.
Rambutan offers more vitamin C and energy, but langsat is lower in calories and sugar, making it a leaner choice for weight loss.
This food
Langsat
VS75% alike
Compare with
Lychee
Lychee is significantly higher in sugar and vitamin C, while langsat is lower in calories and has a milder sweetness.
Lychee is sweeter and richer in vitamin C, but langsat contains less sugar and fewer calories, making it better for managing blood sugar.
This food
Langsat
VS75% alike
Compare with
Longan
Longan has a musky, floral flavor and lower fiber, while langsat is more tart and slightly better for digestion.
Longan is sweeter with a floral taste, but langsat provides more fiber and fewer calories, offering better satiety and weight loss support.
This food
Langsat
VS70% alike
Compare with
Mangosteen
Mangosteen is lower in calories and sugar with a distinct creamy texture, while langsat is slightly higher in carbohydrates.
Mangosteen is lower in calories and sugar, making it better for blood sugar control, while langsat provides slightly more energy for fitness activities.
This food
Langsat
VS65% alike
Compare with
Grapes
Grapes are higher in sugar and lack the tropical tartness of langsat, which is lower in calories and more fiber-rich.
Langsat is lower in calories and sugar than grapes, making it a better option for weight loss and blood sugar management.
This food
Langsat
VS60% alike
Compare with
Sweet Orange
Oranges are much higher in vitamin C and lower in calories, while langsat offers a different flavor and slightly more carbs.
Sweet oranges provide significantly more vitamin C and fewer calories per serving, making them nutritionally superior, though langsat offers unique tropical flavor.
This food
Langsat
VS55% alike
Compare with
Pomelo
Pomelo is much larger, lower in calories, and significantly higher in vitamin C, while langsat is a sweeter, smaller snack.
Pomelo is lower in calories and sugar with far more vitamin C, making it the healthier choice overall, while langsat serves as a sweeter, portable snack.
This food
Langsat
VS50% alike
Compare with
Guava
Guava is vastly superior in vitamin C and fiber, while langsat is lower in calories and has a juicier, less dense texture.
Guava is a fiber and vitamin C powerhouse better for satiety and blood sugar, while langsat is a lighter, lower-calorie treat with a juicier texture.
Common questions
FAQ
Answers aligned with how people search for this food.
Is langsat good for weight loss?
Yes, langsat can be good for weight loss. It is low in calories and contains dietary fiber which promotes satiety, helping you feel full longer without consuming excess calories.
Can diabetics eat langsat?
Diabetics can eat langsat in moderation. It has a moderate glycemic index and contains natural sugars, so portion control is important to prevent blood sugar spikes.
Is langsat the same as duku?
Langsat and duku are closely related species, but they are not the same. Duku generally has thicker skin, less sticky latex, and a sweeter, less acidic taste compared to langsat.
Can you eat langsat seeds?
No, you should not eat langsat seeds. They are highly bitter and contain compounds that can be mildly toxic or cause digestive upset if consumed in large quantities.
How many calories are in langsat?
There are approximately 63 calories in 100 grams of langsat, making it a relatively low-calorie fruit choice for snacking.
What does langsat taste like?
Langsat tastes similar to a sweet grapefruit or sweet grape with a hint of tartness. The flesh is juicy and translucent, though the seeds are very bitter.
Does langsat have a lot of sugar?
Langsat contains about 12 grams of natural sugar per 100 grams. This is a moderate amount compared to other tropical fruits, but it should still be factored into daily sugar intake.
How do you peel langsat without getting sticky?
To avoid the sticky latex, peel langsat by gently pressing the skin until it cracks, rather than using your fingernails to tear it. Peel from the stem end to keep the latex off the flesh.
Transparency
Data confidence
Estimated confidence for nutrition data, interpretation, safety notes, and comparisons.
Nutrition data
Health analysis
Food safety
Comparisons