Unsweetened Oat milk Calories and Nutrition Facts
Unsweetened Oat milk has 48 calories per 100 g, with 0.8 g protein, 5.1 g carbs and 2.8 g fat. Official USDA analytical record: Oat milk, unsweetened, plain, refrigerated (FDC ID: 2257046).
A 100g serving of unsweetened oat milk contains 48 calories, 0.8g protein, 5.1g total carbs (5.1g net carbs), and 2.8g fat.
Energy density
0.48 kcal/g
very low
Protein / 100 kcal
1.7 g
satiety per calorie
Net carbs / 100 g
5.1 g
carbs minus fibre
100 kcal portion
208 g
≈ 7.3 oz
- Sugars
- 2.3g
- Fibre
- 0g
- Saturated fat
- 0g
- Sodium
- 42mg
Oat milk, unsweetened, plain, refrigerated nutrition facts
The table below shows the complete nutritional profile for oat milk, unsweetened, plain, refrigerated per 100 g (the laboratory analytical standard), alongside the share of the FDA Daily Value each nutrient covers. Most of its calories come from fat, and it is relatively low in calories.
| Nutrient | Per 100 g | % DV* |
|---|---|---|
| Calories | 48 kcal | — |
| Protein | 0.8 g | 2% |
| Carbohydrate | 5.1 g | 2% |
| Fat | 2.8 g | 4% |
| Sugars | 2.3 g | — |
| Fibre | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Sodium | 42 mg | 2% |
*Percent Daily Value per 100 g, against the FDA reference intakes for adults and children 4+ years (50 g protein, 275 g carbohydrate, 28 g fibre, 78 g fat, 20 g saturated fat, 2300 mg sodium). Total sugars has no Daily Value — the 50 g reference applies to added sugars only, and USDA reports total sugars here.
Unsweetened Oat milk calories by weight: ounces, pounds and grams
USDA publishes this food per 100 g, so here is the same profile converted to the weights a kitchen scale and a US recipe actually use. At 0.48 kcal per gram (very low energy density), you can eat a large volume of this for very few calories, which makes it useful for filling out a meal in a deficit.
| Amount | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 oz (28 g) | 14 kcal | 0.2 g | 1.4 g | 0.8 g |
| 100 g (3.5 oz) | 48 kcal | 0.8 g | 5.1 g | 2.8 g |
| 4 oz (113 g) | 54 kcal | 0.9 g | 5.8 g | 3.2 g |
| 8 oz / ½ lb (227 g) | 109 kcal | 1.8 g | 11.6 g | 6.4 g |
| 1 lb (454 g) | 218 kcal | 3.6 g | 23.1 g | 12.7 g |
Data sourced from USDA FoodData Central Foundation Foods dataset (public domain, CC0). Laboratory food profile and analytical measurements verified under USDA FDC ID 2257046.
View raw USDA laboratory entry →How unsweetened oat milk compares to other beverages
Against the 3 beverages in this database, unsweetened oat milk ranks 3rd lowest in calories and 1st highest in protein. The category averages 27 kcal per 100 g, so this one is 78% above it. The lightest option in the category is almond milk, unsweetened, plain, shelf stable at 15 kcal per 100 g, and the protein leader is oat milk, unsweetened, plain, refrigerated at 0.8 g per 100 g.
| Beverages (by calories) | Calories | Protein | kcal/g |
|---|---|---|---|
| 🥜 Almond milk, unsweetened, plain, shelf stable | 15 kcal | 0.6 g | 0.15 |
| 🥜 Almond milk, unsweetened, plain, refrigerated | 19 kcal | 0.7 g | 0.19 |
| 🥣 Oat milk, unsweetened, plain, refrigerated (this page) | 48 kcal | 0.8 g | 0.48 |
Portion planning with unsweetened oat milk
- 100 calories comes to about 208 g (7.3 oz).
- Macro split by calories: 42% carbs, 7% protein, 52% fat.
Nutrient screening detail
The badges near the top of this page come from screening the per-100 g values against the FDA nutrient-content thresholds in 21 CFR 101.54–101.62. The regulations define those claims per reference serving rather than per 100 g, so treat these as a like-for-like comparison between foods, not as a statement about a product label:
- Low fat — 2.8 g per 100 g (≤ 3 g)
- Low saturated fat — 0 g per 100 g (≤ 1 g)
- Low sodium — 42 mg per 100 g (≤ 140 mg)
Track unsweetened oat milk for free
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Unsweetened Oat milk FAQ & Nutrition Questions
How many calories and carbs are in 100 g of unsweetened oat milk?
One serving of 100 g provides 48 calories, 5.1 g total carbs, 0.8 g protein, and 2.8 g fat.
How many calories are in 100 g of unsweetened oat milk?
Unsweetened Oat milk contains 48 calories per 100 g, with 0.8 g protein, 5.1 g carbohydrate, and 2.8 g fat. Use the interactive calculator above to scale to any custom amount.
What is the USDA FoodData Central (FDC) ID for unsweetened oat milk?
The official USDA FoodData Central ID for "Oat milk, unsweetened, plain, refrigerated" is FDC ID: 2257046. You can view the verified laboratory analytical record on the USDA FoodData Central Database.
What is the macronutrient breakdown of unsweetened oat milk?
By calories, unsweetened oat milk is approximately 42% carbohydrates, 7% protein, and 52% fat.
How many calories are in an ounce of unsweetened oat milk?
One ounce (28 g) of unsweetened oat milk has 14 calories, with 0.2 g protein, 1.4 g carbs and 0.8 g fat. Four ounces (113 g) comes to 54 calories, and a full pound (454 g) to 218 calories.
How much unsweetened oat milk is 100 calories?
About 208 g of unsweetened oat milk supplies 100 calories, because it carries 0.48 kcal per gram (very low energy density). You can eat a large volume of this for very few calories, which makes it useful for filling out a meal in a deficit.
Is unsweetened oat milk high or low in calories for a beverage?
Unsweetened Oat milk sits 78% above the beverages average of 27 kcal per 100 g, ranking 3rd lowest of 3 in this category.
Is this nutrition data free to use?
Yes. The data is sourced directly from USDA FoodData Central (CC0 public domain). Viewing and scaling portions here is 100% free with no sign-up — and you can log this food free in our online food diary.