Wild rice and brown rice often occupy the same part of the plate, but they are not two versions of the same grain. Brown rice is Oryza sativa with the bran and germ retained. Wild rice comes from Zizania species, aquatic grasses native to North America whose seeds are cooked and used much like rice.
There are nutritional differences, but the comparison only makes sense on the same cooked-weight basis. Comparing dry grain with a cooked cup mostly measures water absorption.
Nutrition per 100 g cooked
Using USDA reference data for cooked wild rice without added fat and cooked long-grain brown rice:
| Per 100 g cooked | Wild rice | Brown rice |
|---|---|---|
| Calories | ~100 kcal | 123 kcal |
| Protein | ~4.0 g | 2.7 g |
| Carbohydrate | ~21.2 g | 25.6 g |
| Fat | ~0.3 g | 1.0 g |
| Fiber | ~1.8 g | 1.6 g |
Protein is the clearest difference: about 4.0 g versus 2.7 g per 100 g, roughly 45% more protein in the wild rice reference. That does not turn wild rice into a high-protein food—a 150 g portion would contain about 6 g—but it is a meaningful relative difference.
Wild rice also comes in lower in calories and carbohydrate per 100 g cooked in these records. Some of that reflects how much water the cooked grains hold, which is why these numbers are best read as “what is in 100 g on the plate,” not as a universal dry-grain ranking.
A serving comparison makes that even clearer. At about 180 g cooked, wild rice would provide roughly 180 calories and a little over 7 g of protein, while brown rice would be around 220 calories and close to 5 g of protein. The difference is real, but neither serving replaces the main protein source in a meal.
Does wild rice have much more fiber?
Not in this comparison. The values are about 1.8 g versus 1.6 g per 100 g. At a 150 g cooked serving, that works out to roughly 2.7 g versus 2.4 g. Wild rice is slightly higher, but the gap is only about 0.3 g per 150 g serving.
If fiber is the main goal, adding beans, vegetables, seeds, or another clearly high-fiber food will usually change the meal more than switching between these two grains. That keeps the comparison in proportion instead of making a small difference sound decisive.
Texture may matter more than small nutrient gaps
Brown rice is relatively tender and neutral, with a mild nutty character. Wild rice is firmer, darker, and more assertive. It works especially well in salads, stuffing, soups, and grain blends.
One shopping detail matters: many packages called “wild rice blend” contain white rice, brown rice, and only a fraction of actual wild rice. Those figures are for wild rice itself. A blend will reflect whatever proportions are in the bag.
Cooking time can matter as much as nutrition in everyday use. Pure wild rice often needs a longer simmer and stays pleasantly chewy even when fully cooked; brown rice is more familiar in texture and easier to use in routine bowls, sides, and meal prep. A food you enjoy and cook regularly often matters more than a modest difference on paper.
Which one should you choose?
Wild rice is a good pick if you want a chewier grain and a little more protein per cooked weight. Brown rice is an easy, versatile whole grain and is usually simpler to find and less expensive. The fiber difference is too small here to make that the deciding factor.
For a complete meal, what you pair with the grain—beans, vegetables, fish, eggs, tofu, or another protein—usually changes the nutritional picture more than the small fiber difference between these two.
Bottom line
Wild rice is not simply darker brown rice; it is a different genus of grass. In USDA cooked-food reference data, it has more protein and somewhat less carbohydrate and energy per 100 g, while the fiber difference is modest. Compare equal cooked weights, then choose based on taste, texture, price, cooking time, and the meal you are building.
Sources
- USDA FoodData Central — brown long-grain rice, cooked (FDC 169704) — Reference nutrition for cooked brown rice.
- USDA FoodData Central — wild rice, cooked, no added fat (FDC 2708424) — Reference nutrition for cooked wild rice.
- University of Wisconsin / Minnesota Extension — Wild Rice — Botanical identity and background on Zizania palustris.