Mayonnaise is excellent for keto: ~0.6g net carbs and ~80g fat per 100g. Opt for avocado- or olive-oil mayo (no sugar/starch) to keep ingredients clean for salads, dips, and lettuce-wrapped “sandwiches.”
Is Mayonnaise Keto?

Mayonnaise is excellent for keto: ~0.6g net carbs and ~80g fat per 100g. Opt for avocado- or olive-oil mayo (no sugar/starch) to keep ingredients clean for salads, dips, and lettuce-wrapped “sandwiches.”
- Net carbs (100g)0.6g
- Protein (100g)0.3g
- Fat (100g)80g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100g (raw)
Source: USDA FoodData Central
WHY IT'S KETO-FRIENDLY
- Ultra-low net carbs (~0.6g/100g) won’t disrupt ketosis
- High fat content supports keto macros and satiety
- Versatile binder for tuna/egg/chicken salads and sauces
- Fat helps absorb fat-soluble vitamins (A, D, E, K) from meals
- Easy way to add calories on low appetite days
- Choose sugar-free, high-oleic oils for a cleaner profile
HEALTH BENEFITS
- Provides vitamin E (from oils) with antioxidant activity
- Egg yolks contribute choline for brain and liver function
- High oleic acid (when made with avocado/olive oil) supports heart-healthy lipid profiles
- Dietary fat can improve meal satisfaction and adherence on keto
- Emulsified fats can enhance nutrient absorption from vegetables
- Low carb count makes it suitable for glucose-sensitive eaters
PREPARATION SUGGESTIONS
CAESAR DRESSING
Whisk mayo with lemon, garlic, parmesan-cheese, and anchovy (optional) for a rich keto dressing.
TUNA SALAD
Combine with tuna, celery, and a little dijon-mustard; serve in romaine-lettuce cups.
EGG SALAD
Mix with eggs-whole (hard-boiled), dijon-mustard, and herbs for a quick lunch.
SAUCE BASE
Stir in vinegar-apple-cider, spices, or hot sauce (e.g., franks-red-hot) for custom dips.
BURGER TOPPING
Spread on keto burgers or lettuce wraps; add pickles and yellow-mustard.
VEGETABLE DIP
Blend with herbs and olive-oil for a creamy dip for cucumbers and bell-pepper-green.