Nutrition basics · USDA serving data

Does oatmeal have protein?

Yes. One cup of oatmeal cooked with water, without salt (234 g), has 5.9 g protein and 166 kcal, according to USDA FDC 173905. Milk and toppings add to those totals.

Written by the KaloCam team · October 28, 2026 · Not reviewed by a registered dietitian.

How much protein does oatmeal have?

The amount depends on the portion and preparation. USDA groups regular and quick oats together; this is the record used here for rolled oats. Plain fortified instant oats have their own records. Every nutrient in a row comes from the linked FDC record, scaled to the stated weight.

USDA oats: dry and prepared servings are separate records
Food and servingProtein (g)Energy (kcal)Carbs (g)Fiber (g)Protein / 100 kcal (g)
Rolled oats (USDA regular/quick), dry½ cup dry (40.5 g)USDA FDC 173904 · all values in this row5.315327.44.13.5
Regular/quick oatmeal, water-cooked, no salt1 cup cooked (234 g)USDA FDC 173905 · all values in this row5.916628.143.6
Plain fortified instant oats, dry1 packet dry (28 g)USDA FDC 171661 · all values in this row3.310119.52.83.3
Plain fortified instant oatmeal, water-prepared1 packet prepared (177 g)USDA FDC 171662 · all values in this row4.212020.733.5

The dry rolled-oat portion is half of USDA’s 81 g cup. The instant dry portion is one 28 g packet; its prepared portion uses USDA’s 177 g “packet, dry, yields” measure. These are different serving sizes, so use the protein per 100 kcal column when comparing protein relative to energy.

Dry and cooked rows are separate USDA analyses, not before-and-after measurements of the same batch. Water changes weight and volume. A cup cooked is not a cup dry, and the cooked cup above is not a promised yield from the dry half-cup.

Does steel cut oatmeal have protein?

For a steel-cut product, use its nutrition label and serving weight. The local USDA SR Legacy dataset used for this comparison has no separately named steel-cut record, so this table gives no steel-cut estimate or ranking.

Oatmeal protein compared with breakfast foods

Here are common servings, with the preparation named. The egg uses the hard-boiled variant on our egg page; yogurt is plain and nonfat, and toast has no spread. Serving sizes differ; protein per 100 kcal describes protein relative to energy, not overall food quality.

USDA breakfast servings: protein and energy
Food and servingProtein (g)Energy (kcal)Protein / 100 kcal (g)
Oatmeal, cooked with water1 cup cooked (234 g)USDA FDC 173905 · all values in this row5.91663.6
Hard-boiled egg1 large egg (50 g)USDA FDC 173424 · all values in this row6.3788.1
Plain nonfat Greek yogurt1 container (6 oz) (170 g)USDA FDC 170894 · all values in this row17.310017.3
Whole-wheat toast, plain1 slice toasted (25 g)USDA FDC 172689 · all values in this row4.1775.3

How to add protein to oatmeal: calculated bowls

Start with ½ cup dry regular/quick oats (40.5 g). Cook with water unless milk is listed. The milk option replaces the water with 1 cup nonfat milk; all of that milk is included in the calculation. Water contributes no calories or protein. Finished weight and volume vary.

Ingredient contributions

  • Rolled oats (USDA regular/quick), dry: ½ cup dry (40.5 g) — 5.3 g protein, 153 kcal. FDC 173904
  • Nonfat milk, vitamins A and D added: 1 cup milk (245 g) — 8.3 g protein, 83 kcal. FDC 171269
  • Plain nonfat Greek yogurt: 1 container (6 oz) (170 g) — 17.3 g protein, 100 kcal. FDC 170894
  • Smooth salted peanut butter: 1 tbsp (16 g) — 3.6 g protein, 96 kcal. FDC 174266
  • Egg whites, weighed raw; cook before eating: 2 large egg whites (66 g) — 7.2 g protein, 34 kcal. FDC 172183

Cook oats in milk

Use all the listed ingredients; totals are for one whole bowl.

  • ½ cup dry of rolled oats (usda regular/quick), dry: 5.3 g protein + 153 kcal
  • 1 cup milk of nonfat milk, vitamins a and d added: 8.3 g protein + 83 kcal

Calculated total: 13.6 g protein, 237 kcal.

Stir yogurt into water-cooked oats

Stir the yogurt in after cooking. Use all the listed ingredients; totals are for one whole bowl.

  • ½ cup dry of rolled oats (usda regular/quick), dry: 5.3 g protein + 153 kcal
  • 1 container (6 oz) of plain nonfat greek yogurt: 17.3 g protein + 100 kcal

Calculated total: 22.6 g protein, 254 kcal.

Add peanut butter to water-cooked oats

Use all the listed ingredients; totals are for one whole bowl.

  • ½ cup dry of rolled oats (usda regular/quick), dry: 5.3 g protein + 153 kcal
  • 1 tbsp of smooth salted peanut butter: 3.6 g protein + 96 kcal

Calculated total: 8.9 g protein, 249 kcal.

Cook egg whites into oats

Whisk in the egg whites and cook thoroughly; the amount is weighed before cooking. Use all the listed ingredients; totals are for one whole bowl.

  • ½ cup dry of rolled oats (usda regular/quick), dry: 5.3 g protein + 153 kcal
  • 2 large egg whites of egg whites, weighed raw; cook before eating: 7.2 g protein + 34 kcal

Calculated total: 12.5 g protein, 188 kcal.

Cook in milk, then add yogurt

Stir the yogurt in after cooking. Use all the listed ingredients; totals are for one whole bowl.

  • ½ cup dry of rolled oats (usda regular/quick), dry: 5.3 g protein + 153 kcal
  • 1 cup milk of nonfat milk, vitamins a and d added: 8.3 g protein + 83 kcal
  • 1 container (6 oz) of plain nonfat greek yogurt: 17.3 g protein + 100 kcal

Calculated total: 30.9 g protein, 337 kcal.

Totals add the unrounded USDA contributions and are rounded only at the end. Displayed ingredient numbers may differ slightly when added because each is rounded. These are calculated estimates, not laboratory measurements of the finished bowls. Brands, extra toppings and unfinished portions change the result.

For daily protein planning beyond breakfast, see our protein and body recomposition guide.

How many carbs in oatmeal? Carbs in oats by serving

One cup cooked with water (234 g) has 28.1 g carbs and 4 g fiber. The ½ cup dry portion here (40.5 g) has 27.4 g carbs and 4.1 g fiber. These are total carbohydrates; fiber is listed separately, not subtracted.

For carbs in oats at other portion sizes and the calorie breakdown, use the oatmeal calories and nutrition page.

Are oats good for you? Oats benefits in nutritional terms

These USDA records show that oats supply protein, carbohydrates and fiber. The cooked serving’s nutrient amounts are listed above. Milk, yogurt or other ingredients change the nutrient totals; sweetened instant products need their own label values. These facts describe the food’s composition and do not establish a health outcome.

Does oatmeal have protein in it without milk?

Yes. The opening answer uses oatmeal cooked with water alone. The protein in that serving comes from the oats; milk is an additional ingredient.

Does oatmeal have any protein in a smaller portion?

Yes. For the same USDA record and preparation, scale the protein by the weight you eat. Use grams rather than treating a dry measure and a cooked measure as interchangeable.

Sources and calculation method

Source: USDA FoodData Central, SR Legacy bulk CSV release (April 2018; FDC publication April 2019). Each table row and ingredient links to its specific FDC ID. All figures use the source’s energy value rather than estimating calories from rounded macros.

For each nutrient: source amount per 100 g × serving grams ÷ 100. Protein per 100 kcal = unrounded serving protein ÷ unrounded serving kcal × 100. Bowl totals sum every listed ingredient before rounding. Calories display as whole kcal; grams display with at most one decimal place.

The cooked oatmeal values and portion match our existing oatmeal food page. This article focuses on protein; that page covers calories and portion sizes.