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Grains and bread

Brown rice cakes

Brown rice cakes packs 387 kcal into 100 g (3.5 oz), so a typical 18 g (0.6 oz) serving already adds up to about 70 kcal.

USDA description: Brown rice cakes, plain, unsalted

  • High in fiber
  • High energy density

Estimated satietyHow it is calculated

Starting point+1
High energy density: 387 kcal/100 g−1
Protein: 2.1 g/100 kcal0
Fiber: 1.1 g/100 kcal0
Solid food with 5.8 g of water, under 700
Sum0
Raised to the minimum of 11

Our own estimate from the values per 100 g: useful for comparing foods with each other, not a measurement in people. Holt index (1995): this food was not measured.

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Sources
1 primary
Data
USDA FDC 170250

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Nutrition facts

Calories
70 kcal per serving
387 kcal per 100 g (3.5 oz)
Protein
1.5 g per serving
8.2 g per 100 g (3.5 oz)
Carbohydrates
14.7 g per serving
81.5 g per 100 g (3.5 oz)
of which sugars
0.2 g per serving
0.9 g per 100 g (3.5 oz)
Fiber
0.8 g per serving
4.2 g per 100 g (3.5 oz)
Fat
0.5 g per serving
2.8 g per 100 g (3.5 oz)
of which saturated
0.1 g per serving
0.6 g per 100 g (3.5 oz)
Water
1 g per serving
5.8 g per 100 g (3.5 oz)

Source: USDA FoodData Central: Snacks, rice cakes, brown rice, plain, unsalted (FDC ID 170250), accessed September 23, 2026.

A typical 18 g (0.6 oz) serving provides about 70 kcal, 1.5 g of protein, and 0.8 g of fiber.

The typical serving (18 g (0.6 oz)) is a common amount used for the math, not a recommendation. Ounces and cups are rounded US equivalents; the values come from the database entry cited in the sources.

Recipes with this food

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Satiety

The 1 to 5 score is our own estimate: it starts at 1 point, adds points for low energy density, for protein and fiber per 100 kcal, and for the water in solid foods, and subtracts points for drinks with calories. It is useful for comparing foods with each other; it is not a measurement in people.

What to keep in mind on a GLP-1 medication

High in fiber
It has at least 3 g of fiber per 100 g. Fiber adds bulk and slows digestion, which contributes to fullness, and it helps keep you regular; constipation is a common side effect of GLP-1 medications. It is usually easier to tolerate when you increase it gradually and drink enough water.
High energy density
It has more than 300 kcal per 100 g: a lot of energy in a small volume, so it is less filling per calorie. That does not make it a bad food; when your appetite is very low, a small serving can help you meet your needs.

Frequently asked questions about brown rice cakes

How much protein is in a 18 g (0.6 oz) serving of brown rice cakes?

100 g (3.5 oz) of brown rice cakes has 8.2 g of protein. A typical 18 g (0.6 oz) serving has about 1.5 g of protein. That is 2.1 g of protein per 100 kcal.

How many calories does a 18 g (0.6 oz) serving of brown rice cakes have?

100 g (3.5 oz) of brown rice cakes has 387 kcal. A typical 18 g (0.6 oz) serving has about 70 kcal. That is a high energy density.

Does brown rice cakes have fiber?

100 g (3.5 oz) of brown rice cakes has 4.2 g of fiber. A typical 18 g (0.6 oz) serving has about 0.8 g of fiber. It carries our “High in fiber” tag.

Is brown rice cakes filling?

Barely filling for the calories it provides: our estimated satiety score is 1 out of 5. Calculation: 1 (base) − 1 (high energy density: 387 kcal/100 g) + 0 (protein: 2.1 g/100 kcal) + 0 (fiber: 1.1 g/100 kcal) + 0 (solid food with 5.8 g of water, under 70) = 0; raised to the minimum of 1. It is an estimate based on its composition, not a measurement in people.

What should I know about brown rice cakes on a GLP-1 medication?

Based on our tags, this is what matters about brown rice cakes on a GLP-1 medication. “High in fiber”: a good amount of fiber, which helps keep you regular; it is easier to tolerate when you increase it gradually and drink enough water. “High energy density”: a lot of energy in a small volume; when your appetite is very low, a small serving can help you meet your needs. These are general guidelines, not medical advice: everyone tolerates foods differently.

What counts as a normal serving of brown rice cakes?

We use 18 g (0.6 oz) as a typical serving. That amount provides about 70 kcal, 1.5 g of protein, and 0.8 g of fiber. It is a reference for calculations, not a recommendation of how much to eat.

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Sources

Sources for the data on this page, with the access date.

  1. U.S. Department of Agriculture, Agricultural Research Service.USDA FoodData Central: Snacks, rice cakes, brown rice, plain, unsalted (FDC ID 170250).accessed .