Use in Moderation
Blueberries
9.00g net carbs per ½ cup
9.0g net carbs per ½ cup. High antioxidants but limit to a small portion.
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 45% of your 20g daily budget.
Plan the rest of your day
Good to Know
Fresh wild blueberries run smaller than the cultivated kind, so you can spread that 9 g of net carbs across more berries and get a bit more chew per portion. Watch the dried versions, which often pack added sugar or fruit juice and concentrate the carbs way past what you would get from a ½ cup of fresh. A smarter move is tossing 8 to 10 whole berries onto full-fat Greek yogurt rather than reaching for muffins, jams, or smoothies where the carb count climbs fast.
Is Blueberries Keto? The Full Answer
Blueberries contains 9.00g net carbs per ½ cup (10.80g total carbs minus 1.80g fiber). 9.0g net carbs per ½ cup. High antioxidants but limit to a small portion.
On a standard ketogenic diet, most people target 20-25g net carbs per day. A single serving uses 45% of a 20g daily carb limit. Track your portions carefully and account for other carbs in your meals.
Better Keto Swaps
Blueberries aren't off-limits, but at 9 g net carbs per half cup they eat up a big chunk of a 20 g daily budget fast. Here are some lower-carb stand-ins. Raspberries are your best berry friend: a half cup runs about 3 g net carbs, and they bring that same tart-sweet pop plus a lot of fiber. Blackberries are another solid pick at roughly 3 g net carbs for a half cup, great mashed into yogurt or eaten by the handful. Want the deep blue color and the antioxidant angle? Try a small handful of fresh strawberries, around 4 g net carbs per half cup sliced. Any of these lets you keep fruit in the rotation without blowing past your carb ceiling.
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.