Unsweetened oat milk is not keto-friendly for everyday use. At ~8g net carbs per 100ml, even small glasses can eat up a strict keto carb budget. If you use it at all, keep to splash-level portions and favor lower-carb alternatives like almond, macadamia, coconut, or pea milk.
Is Oat Milk (Unsweetened) Keto?
Milk & Cream

KETO VERDICTLIMIT
Unsweetened oat milk is not keto-friendly for everyday use. At ~8g net carbs per 100ml, even small glasses can eat up a strict keto carb budget. If you use it at all, keep to splash-level portions and favor lower-carb alternatives like almond, macadamia, coconut, or pea milk.
- Net carbs (100g)8.0g
- Protein (100g)2.7g
- Fat (100g)1.5g
- Keto verdictLimit portions
NUTRITION FACTS
Per 100g (raw)
Net Carbs
8.0g
Total Carbs
8.5g
Fiber
0.5g
Protein
2.7g
Fat
1.5g
Calories
47
Source: USDA FoodData Central
WHY TO LIMIT IT ON KETO
- Not suitable for strict keto due to ~8g net carbs per 100ml
- Even unsweetened versions are oat-starch based and raise carbs quickly
- Tiny portions may fit flexible approaches, but daily use is impractical
- Better as an occasional splash rather than a full serving
- Some people use 1–2 tbsp in coffee and track precisely
- Prefer lower-carb alternatives (almond, macadamia, coconut, pea milks)
HEALTH BENEFITS
- Contains beta-glucans that may support healthy cholesterol (outside strict keto use)
- Plant-based fiber can aid digestion in non-keto contexts
- Often fortified with calcium and vitamins A, D, and B12
- Provides oat polyphenols and antioxidants
- Naturally dairy-free for lactose intolerance
- May help with satiety when combined with protein (carb allowance permitting)
PREPARATION SUGGESTIONS
MINIMAL USE IN COFFEE
Limit to 1–2 tablespoons to minimize carb impact; log carefully.
LOW-CARB SMOOTHIE (LIMITED)
Blend ¼ cup with almond-milk-unsweetened and protein powder; track carbs closely.
COOKING INGREDIENT
Use small amounts for texture in savory recipes and account for carbs.
PROTEIN SHAKE THICKENER
Add 1–2 tablespoons to a whey-protein shake for light creaminess.
ALTERNATIVE FOR NON-KETO DAYS
Reserve for less-restrictive days when carb limits allow flexibility.