How many carbs are in lasagna?
A restaurant serving of meat lasagna weighs about 457g and carries around 52g of carbohydrate and 45g of net carbs. That is a substantial carb load from a single dish.
Carbs by portion
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 restaurant serving (457g) | 51.9g | 6.9g | 45.1g |
| 100 grams | 11.4g | 1.5g | 9.9g |
Net carbs
One serving of lasagna has about 45g of net carbs, which is total carbs (52g) minus fiber (7g). The pasta layers supply most of the carbs; the meat and cheese contribute very little. See the net carbs guide for when net carbs matter versus total.
Glycemic index of lasagna
The glycemic index of lasagna is about 47. Pasta-based dishes have a moderate glycemic index because the pasta matrix slows starch digestion compared with bread. The fat and protein from meat and cheese slow it further. A denser, cheesier lasagna tends to sit at the lower end of that range.
For diabetes
One restaurant serving of lasagna carries about 52g of carbs, close to three to four carb exchanges. The moderate GI from the pasta matrix means the rise is slower than bread or white rice, but the total load is still substantial for a single dish. A smaller portion around 230g cuts the carbs to about 26g and is much easier to dose for. Most clinicians recommend counting total carbs, not net, for mixed dishes like lasagna. See the diabetes carb-counting guide.
Keto and low carb
A full restaurant serving of lasagna has about 45g of net carbs, well over a typical keto day's budget of 20 to 30g. Lasagna does not fit keto. Zucchini-layered or cauliflower-based versions can bring net carbs down to 8 to 12g per serving depending on how they are made.
Good to know
The pasta sheets are the dominant carb source in lasagna, not the sauce or filling. Meat lasagna and cheese lasagna land at nearly the same carb count per 100g because the noodles drive the number. Restaurant portions vary widely. A diner cut can run anywhere from 300g to over 500g, so weighing your portion is the only reliable way to know what you are eating. Home recipes using no-boil noodles have a similar carb density per 100g to restaurant versions.
Full nutrition (per 100g)
- Calories: 185.0 kcal
- Carbohydrate: 11.36g
- Fiber: 1.5g
- Sugars: 3.15g
- Protein: 10.83g
- Fat: 10.69g
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Get the appFrequently asked questions
How many carbs are in lasagna?
A restaurant serving of meat lasagna (457g) has about 52g of carbohydrate. Per 100g, lasagna has about 11g of carbs. A home portion of around 230g has about 26g.
How many net carbs are in lasagna?
One restaurant serving has about 45g of net carbs, which is total carbs (52g) minus fiber (7g).
What is the glycemic index of lasagna?
Lasagna has a GI of around 47, which is moderate. The pasta matrix and the fat from meat and cheese slow starch digestion compared with bread or plain boiled pasta.
Is lasagna OK for diabetics?
A full restaurant serving is a large carb load at 52g. A half-portion around 230g brings it to about 26g and is easier to manage. Pairing with a salad rather than garlic bread keeps the meal total in range. Count total carbs when dosing, not net.
Is lasagna keto-friendly?
No. One restaurant serving has about 45g of net carbs, more than a full day's keto budget of 20 to 30g. Zucchini or cauliflower lasagna versions can work for low-carb eaters.