Galangal: What It Is, Galangal vs Ginger and Kitchen Uses

Galangal is a pale, knobbly rhizome used as a spice across Southeast Asia, most famously in Thai curry pastes and soups. It looks a lot like ginger and belongs to the same plant family, but it is firmer, woodier and sharper in flavor, with a piney, citrus-like bite rather than ginger’s warm sweetness. If a recipe calls for galangal root and you only have ginger, the dish will still work, but it will taste different. One fact surprises many readers: the USDA SR Legacy database, the standard reference behind most nutrition tables, has no galangal entry, so this guide gives no galangal nutrient numbers it cannot source. Below is what galangal is, how it compares with ginger, how cooks handle it, and what to reach for as a galangal substitute.

Peptide Labs does not sell galangal as a spice; this guide is about the kitchen spice. This article is general nutrition and cooking information, not medical advice.

What is galangal?

Galangal is the common name for the underground stem, or rhizome, of plants in the genus Alpinia. A 2011 review identifies Alpinia galanga, often called greater galangal, as a member of the family Zingiberaceae that is commonly known as galangal, and a 2022 review notes that it is used as a spice and condiment in the cooking of Indonesia, Thailand and Malaysia. A 2021 study of four spices from “the ginger family (Zingiberaceae)” grouped galangal with ginger, turmeric and cardamom, which explains why the rhizomes look alike.

The name covers more than one plant. US food regulations list “galanga (galangal)” under its botanical name Alpinia officinarum, often called lesser galangal. Under 21 CFR 182.10, FDA includes it among spices and natural seasonings generally recognized as safe for their intended use, and 21 CFR 182.20 lists its essential oil and natural extractives the same way. That status refers to its normal role as a seasoning in food. The fresh rhizome sold in Asian groceries is usually greater galangal; dried slices and powder may come from either species, so check the label if the difference matters to you.

Galangal vs ginger: same family, different spice

Ginger is Zingiber officinale, a separate genus in the same family, and FDA lists it as its own entry in the same spice regulation. In the kitchen the two are easy to tell apart once you hold them. Galangal has smoother, paler skin marked with darker rings, and its flesh is hard and fibrous. Ginger is softer, juicier and easier to grate. Galangal tastes sharp, piney and peppery with a citrus edge; ginger is warm, spicy and slightly sweet.

Chemistry backs up what your nose notices. A 2025 aroma study of fresh greater galangal found that 1,8-cineole, a compound called (S)-galangal acetate, and myrcene had the highest odor activity values, and the researchers rebuilt the typical galangal aroma from 20 key odor compounds. In the 2021 comparison of four ginger-family spices, the main compound in galangal essential oil was 1,8-cineol, while the main compound in ginger oil was alpha-zingiberene.

Because they share a family, people often think of galangal as a type of ginger, but cooks in Thailand and Indonesia use them for different jobs. Our ginger guide covers that spice in depth, and our ginger tea guide covers the drink.

Galangal nutrition: what USDA does and does not list

USDA SR Legacy has no entry for galangal, galanga or Alpinia, so this guide does not quote galangal calories, fiber or mineral numbers. The table below shows the closest USDA entries, clearly labeled. Ginger is the nearest relative in the database; lemongrass is included because the two are so often cooked together, but it is a grass, not a member of the ginger family. None of these numbers describe galangal itself. %DV uses FDA Daily Values.

The pattern in the USDA data is what you would expect from a seasoning. Per 100 grams, raw ginger lists 80 calories, but five slices, about what a pot of soup might hold, come to roughly 9 calories and 1% of the Daily Value for potassium. Dried spices are more concentrated by weight, which is why a teaspoon of ground ginger shows a quarter of the Daily Value for manganese. Galangal is used in similar small amounts, so its contribution is flavor, not a meaningful share of daily nutrients. See our lemongrass guide for that herb on its own.

How to cook with galangal root

Galangal shows up in curry pastes, soups and stir-fries. A 2024 study of ready-to-use Thai curries lists galangal rhizomes alongside chili, garlic, peppers, shallots and coriander seeds as ingredients of Massaman and spicy basil leaf curry. In Thai coconut soups, thin coins of galangal simmer with lemongrass, lime leaves, coconut milk and a squeeze of lime.

• Peeling: young galangal has thin skin that barely needs peeling; older pieces can be peeled with a sharp knife or the edge of a spoon.
• Cutting: because the flesh is woody, slicing into thin coins or matchsticks works better than grating. For curry paste, chop finely before pounding or blending.
• Soup slices: large slices flavor a broth but stay tough, so many cooks push them to the side of the bowl rather than eat them.
• Dried and powdered forms: dried slices need a long simmer or a soak to soften; powder tastes different from fresh and is easy to overdo, so add it a little at a time.
• Storage: wrap fresh galangal and keep it in the refrigerator, or slice and freeze it so you can add pieces straight to the pot.

Galangal substitute: what to reach for

The most common galangal substitute is fresh ginger. It brings heat and a similar texture to a curry or soup, but it lacks galangal’s piney sharpness, so the dish tastes warmer and sweeter. Some cooks add a little extra lemongrass or a strip of lime zest to bring back some of the citrus notes. Dried galangal slices or powder from an Asian grocery are closer in flavor than ginger and keep for a long time in the pantry. Going the other way, galangal is a poor stand-in for ginger in baking or sweet dishes, where its sharp, resin-like flavor can dominate.

Galangal safety and allergy notes

Galangal is not one of the nine major food allergens that US labels must declare. FDA also notes that more than 160 other foods have been reported to cause allergic reactions, so any spice can trigger one in a sensitive person. Swelling of the lips or throat, hives or breathing trouble needs urgent care; for milder or unclear symptoms, see an allergist, and read our elimination diet guide before cutting foods on your own.

Reviews of galangal extracts mostly summarize lab and animal research, and this guide makes no health claims for galangal. Extracts sold in multi-ingredient supplement blends, sometimes next to stimulants such as caffeine, are a different matter from a few slices in a soup; ask a clinician or pharmacist about any such product, especially if you take medicines.

Frequently Asked Questions

Questions about a label? Contact us or read our Buyer’s Guide. Food comes first; follow the label and ask a healthcare provider before starting a supplement, especially if you take medicines, are pregnant or have a food allergy. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Last reviewed October 2026.

Related guides: Camu Camu: The Amazon Fruit, Its Powder and Vitamin C Facts, Ginger for Nausea: What Studies Show, Other Benefits and Side Effects, Lemongrass: Benefits Research, Lemongrass Tea and How to Use It.