Use in Moderation
Butternut Squash
7.50g net carbs per 1/2 cup cubed
Half a cup cubed runs 7.5 g net carbs, which is enough to eat into a strict keto budget fast. Keep it to a small side rather than a full plate, and weigh your portion so the carbs don't sneak up on you.
Built by Barron Hansen · Last updated July 2026
Nutrition Facts
Fits My Daily Budget?
Set your daily net carb limit to see how one serving fits.
One serving uses 38% of your 20g daily budget.
Plan the rest of your day
Good to Know
Most of the carbs here are natural sugars, which is why roasting brings out that caramelized sweetness, so watch for recipes that pile on brown sugar, maple syrup, or honey glazes. Pre-cubed bags from Cascadian Farm or store brands are convenient, but check that they are plain and not coated or seasoned with a sweet blend. If you want a lower-carb swap with a similar feel, spaghetti squash runs much lighter, and you can use a few cubes of this for color or sweetness without making it the centerpiece.
Is Butternut Squash Keto? The Full Answer
Butternut Squash contains 7.50g net carbs per 1/2 cup cubed (10.80g total carbs minus 3.30g fiber). Half a cup cubed runs 7.5 g net carbs, which is enough to eat into a strict keto budget fast. Keep it to a small side rather than a full plate, and weigh your portion so the carbs don't sneak up on you.
On a standard ketogenic diet, most people target 20-25g net carbs per day. A single serving uses 38% of a 20g daily carb limit. Track your portions carefully and account for other carbs in your meals.
Better Keto Swaps
Butternut is on the sweeter end of the squash family, so it eats into your daily carb budget fast. A 1/2 cup here lands at 7.5 g net carbs. Easy trades: Spaghetti squash gives you that soft, scoopable texture for about 3 g net carbs per 1/2 cup, so you keep the comfort-food feel for less than half the carbs. Zucchini is the workhorse swap at roughly 1.5 g net carbs per 1/2 cup, great spiralized, roasted, or cubed into a hash. Want the closest color and roast-it-soft vibe? Try chunks of pumpkin (the plain canned kind, not pie filling) at about 4 g net carbs per 1/2 cup.
Track Your Ketone Levels
The Keto-Mojo meter is the gold standard for confirming you're actually in ketosis. Know your numbers - don't guess.