Unflavored collagen peptides are generally keto-friendly: they’re mostly protein with ~0g net carbs and minimal additives. They can help you hit protein targets without adding carbs—just avoid flavored/sweetened versions that include sugar, maltodextrin, or significant fillers.
Is Collagen Peptides Keto?
Protein

KETO VERDICTYES
Most plain collagen powders are 0g net carbs per scoop and fit keto easily.
Best practice: treat collagen as a protein add-in (not a complete protein replacement).
- Net carbs (100g)0g
- Protein (100g)~90g
- Fat (100g)0g
- Net carbs (1 scoop (10g))0g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100g (raw)
Net Carbs
0g
Total Carbs
0g
Protein
~90g
Fat
0g
Calories
~360
Source: Nutritional databases and food labels
CARB COUNTS BY SERVING SIZE
| Serving | Net Carbs | Total Carbs | Calories | Notes |
|---|---|---|---|---|
| 1 scoop (10g) | 0g | 0g | ~35 | Most unflavored collagen scoops provide ~9–10g protein with negligible carbs. |
| 2 scoops (20g) | 0g | 0g | ~70 | Useful in coffee, shakes, or yogurt to bump protein without carbs. |
WHY IT'S KETO-FRIENDLY
- Typically 0g net carbs and mixes into drinks without changing carbs
- Adds protein to support satiety while keeping carbs low
- Easy to use in coffee or shakes when appetite is low on keto
- Unflavored versions usually have minimal ingredients
- Works with fasting-style routines when used as a planned protein intake
HEALTH BENEFITS
- Provides glycine/proline amino acids important for connective tissue
- May support skin hydration/elasticity in some people (results vary)
- Can be a gentle protein option for people who don't tolerate whey
- Pairs well with strength training when you need more total protein
- May support joint comfort for some (evidence is mixed—monitor your response)
HOW TO USE IT ON KETO
- Choose unflavored collagen peptides with no added sugar or maltodextrin.
- If you’re relying on powder for protein, combine collagen with a complete protein source (meat, eggs, whey, etc.).
- Use collagen as a convenient add-in, not the backbone of your protein intake.
PREPARATION SUGGESTIONS
COFFEE OR TEA
Stir into hot coffee/tea; add cream or MCT oil if you want a more filling keto drink.
PROTEIN SHAKE UPGRADE
Blend with whey or a low-carb protein shake for higher total protein with minimal carbs.
GREEK YOGURT MIX-IN
Mix into plain Greek yogurt with cinnamon or cocoa powder for a high-protein keto snack.
BONE BROTH BOOST
Add to warm broth to increase protein without changing carbs.
BAKING ADD-IN
Use in keto-friendly baking to slightly boost protein; avoid overheating if you’re picky about taste.