Jarlsberg has ~0g net carbs per 100g (≈0g per 1oz/28g slice) and is naturally lactose-free, with a mild, slightly sweet, nutty flavor—an excellent Norwegian cheese for keto with smooth melting properties.
Is Jarlsberg Cheese Keto?

YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 g (as listed by source). Curated estimate; estimated values.
How this is calculated
total carbohydrate - fiber. Each published value is multiplied by your portion divided by the reference amount. No extra fiber, sugar alcohol or allulose deductions are applied here.
Grams and milliliters are not interchangeable. Household measures require a food-specific conversion; check your scale or product label.
0gnet carbs in your portion
- Total carbs
- 0g
- Fiber
- 0g
- Protein
- 27g
- Fat
- 27g
- Calories
- 351
Jarlsberg has ~0g net carbs per 100g (≈0g per 1oz/28g slice) and is naturally lactose-free, with a mild, slightly sweet, nutty flavor—an excellent Norwegian cheese for keto with smooth melting properties.
- Net carbs (100 g)0g
- Protein (100 g)27g
- Fat (100 g)27g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100 g (as listed by source)
Source: Curated estimate
Source fit: curated estimate; not an exact source match
Net-carb calculation: total carbohydrate - fiber
A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.
Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.
WHY IT'S KETO-FRIENDLY
- Ultra-low net carbs: ~0g per 100g (naturally lactose-free) fits even strict keto
- High protein to support muscle maintenance
- High fat boosts satiety and flavor
- Mild, nutty taste suits many dishes and eaters
- Excellent melting—great for burgers, omelets, and bakes
- Versatile: snacks, salads, and hot dishes alike
PREPARATION SUGGESTIONS
SANDWICH CHEESE
Layer in lettuce wraps with deli meat for a quick meal.
MELTED BURGER
Top beef burgers with melted Jarlsberg for mild nutty flavor.
SNACK SLICES
Eat sliced plain or with nuts for a satisfying snack.
EGG DISH
Melt over omelets and scrambled eggs.
VEGETABLE TOPPING
Layer on roasted vegetables before broiling.
SOUP GARNISH
Shred and add to soups for melting texture.