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Nothing to do with mangoes, despite the name.
Only the white segments are eaten; the rind is bitter.
The petals on the base tell you how many segments are inside.
A hard purple shell hides soft white segments that taste sweet, tart and faintly of peach. Known to botanists as Garcinia mangostana.
Mangosteen is sold two ways: as fresh fruit, and as expensive juice and capsules making large health claims. They aren't the same thing, and only one of them is food.
As a fresh fruit it's a pleasant, low-sugar source of folate and vitamin C. Its real value for healthy aging is that it replaces a sweet, not that it does anything a supplement label promises.
Provides vitamin C and fibre in an easy-to-eat form.
The rind is rich in xanthones, which are studied in laboratories.
Mangosteen grows on a slow, dense evergreen tree that can take eight years to bear fruit. The fruit is round, deep purple, and topped with a green cap of stiff sepals. The rind is thick and bitter. Inside are white segments like a peeled tangerine.
Family: Clusiaceae (mangosteen family).
Persian temperament: Cold & Moist (2nd degree). Southeast Asian practice pairs it with durian for exactly this reason: one is read as hot, the other as cooling, and they are eaten in the same season.
Mangosteen isn't part of classical Persian medicine. In South-East Asian tradition it's read as a cooling fruit, often eaten alongside durian, which is read as heating. That pairing is tradition.
Rind decoctions (a drink made by simmering the plant in water) used in South-East Asian folk practice for digestive upsets.
Native to island South-East Asia and long called the queen of fruits, with durian as the king. The rind was used as a dye and a tanning agent long before the fruit reached export markets.
Primary compounds
Xanthones (alpha-mangostin).
Vitamins
Thiamin (B1)
Other notable constituents
Minerals: Manganese, Magnesium, Potassium · Antioxidants: Gamma-mangostin, Garcinone E
From laboratory work, not from people taking it
Mangosteen xanthones show anti-inflammatory activity in laboratory and small human studies. Rated: early research.
Moderate evidence
Severe lactic acidosis was reported after prolonged daily use of mangosteen rind juice.Moderate evidence
Early research
In a small trial, a mangosteen-based drink lowered C-reactive protein, a marker of inflammation, in adults who were overweight. The trial was short and the drink was not plain fruit.Emerging evidence
Reviews of mangosteen supplements in people find the human evidence thin. Most of the promising work is still in cells and animals, not in patients.Emerging evidence
Never cut all the way through; you'll cut the segments in half.
Wipe your hands after opening is the purple rind juice stains cloth permanently.
Segments with a visible seed are fine; just eat around it.
In the kitchen: fresh, opened at the table and eaten segment by segment. Chilled and served after a heavy meal.
Blended into a light drink: though it's better plain · Press the shell gently: it should give slightly. Rock-hard means old.
Cut a shallow ring around the middle and lift the top half off.
Count the little petals underneath: that's the segment count.
Lime
A squeeze over the segments stops a very sweet fruit becoming cloying by the third one.
Coconut
Coconut milk and mangosteen is the standard tropical dessert pairing. And the fat carries the perfume.
Pineapple
Sharp pineapple next to soft mangosteen gives a fruit plate two different textures instead of one.
Yogurt
Spoon the white segments through plain yogurt for a breakfast that needs no sweetening at all.
The rind isn't food. Do not chew or steep it at home.
Concentrated mangosteen supplements aren't the same as the fruit and have been linked to a small number of reports of severe acidosis. Stick to the fruit.
Commercial mangosteen juices are usually blends with cheap fruit juice and added sugar.
General cautions
Some laboratory work suggests mangosteen extracts may slow blood clotting. If you take a blood thinner, avoid extracts and supplements, and mention the fruit to your doctor before surgery.
Specific medicines
Blood thinners — Concentrated mangosteen rind juices have been linked to slower clotting. The fresh white flesh isn't the issue; the supplement is. (moderate concern)
Chemotherapy — High-dose xanthone supplements may interfere with some cancer treatments. Ask your oncologist before taking any of them. (moderate concern)
Diabetes medicine — The fruit is sweet and the commercial juices sweeter still. Count them as sugar. (low concern)
Pregnancy and breastfeeding
The fresh fruit is an ordinary food. Mangosteen rind juices and xanthone capsules have no pregnancy safety data and should be avoided.
Children
Children usually love it. The segments contain occasional hard seeds, so check before handing a whole one to a small child.
Older adults
Soft, easy to eat and needing no preparation beyond opening the shell. Keep the fruit and skip the rind supplements, which is where the interaction risk sits.
Spring
Early fruit in the tropics, usually costly and not at its best.
Summer
The season, and the same months as durian. The two are sold side by side.
Autumn
The tail of the harvest. Look for a shell that still gives under a thumb.
Winter
Frozen or imported only. Fresh fruit at this time of year is rarely worth the price.
Can I eat the purple rind?
No. It is bitter, astringent (tightens tissue and leaves a dry feeling in the mouth), and used for dye rather than food.
Are mangosteen supplements worth it?
No good human evidence supports the claims made for them, and some have caused harm. Eat the fruit instead.
End of the Mangosteen guide