Mashu roots, raw (Alaska Native)
Whole food · American Indian/Alaska Native Foods
Photo: Wikipedia
Mashu roots, also known as wapato or arrowhead, are starchy aquatic tubers traditionally harvested by Alaska Native and other Indigenous peoples of the Pacific Northwest. When raw, they have a crisp, crunchy texture similar to a water chestnut or jicama, with a mild, slightly nutty and earthy flavor. Nutritionally, they are a concentrated source of energy-dense carbohydrates, providing a solid fuel source with minimal fat.
Calorie split: 17% protein · 67% carbs · 16% fat
↓ Full nutrition💚 Why it's loved
People cherish mashu roots for their satisfying crunch and versatile, mild flavor that readily absorbs seasonings. They are deeply valued in Indigenous cultures as a connection to traditional harvesting practices and seasonal feasts.
⚠️ Watch-outs & how to enjoy it better
Raw mashu roots contain calcium oxalate crystals, which can cause irritation or a gritty sensation in the mouth and throat if eaten in large quantities. To counteract this, they are almost always cooked (boiled, roasted, or fried), which breaks down the oxalates and improves digestibility. Their high carbohydrate content also means portion control is advisable for those monitoring blood sugar.
Key benefits
- High in energy-dense carbohydrates for sustained energy
- Contains a good amount of plant-based protein for a tuber
- Naturally low in fat and free of sugar
- A traditional, culturally significant wild-harvested food
- Provides a gluten-free source of starch
🌍 Where it's eaten
💡 Did you know?
The starchy tubers of the wapato plant were historically so important that tribes would paddle out in canoes to harvest them, using their feet to dislodge the roots from the muddy lake bottoms.
Full nutrition (USDA data · scales with serving)
| Water | 67.8 g |
| Energy | 135 kcal |
| Energy | 566 kj |
| Protein | 5.8 g |
| Total lipid (fat) | 2.4 g |
| Ash | 1.4 g |
| Carbohydrate, by difference | 22.6 g |
| Phosphorus, P | 67.0 mg |
| Vitamin C, total ascorbic acid | 11.0 mg |
| Thiamin | 0.10 mg |
| Riboflavin | 0.07 mg |
| Niacin | 1.3 mg |
| Vitamin A, IU | 16.0 iu |
FAQ
What is the difference between mashu roots and potatoes?
Mashu roots (wapato) are aquatic tubers from the arrowhead plant, while potatoes are from a terrestrial nightshade plant. Mashu roots are typically crunchier when raw and have a milder, nuttier flavor compared to the earthier potato.
Can I eat mashu roots raw?
While they can be eaten raw, they are almost always cooked to break down calcium oxalate, which can cause mouth irritation. Cooking also softens their texture and enhances their mild flavor.
Where can I find mashu roots?
They are a wild-harvested food, primarily found in traditional markets or specialty stores in the Pacific Northwest and Alaska. They are not widely cultivated or available in mainstream supermarkets.
Weight-loss friendliness (composite index)
Energy density 1.35 kcal/g · 17% calories from protein · 0.0 g fiber · 0.0 g sugar per 100 g.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.