Is chocolate keto?
Dark chocolate at 85% cacao or higher is keto-friendly, coming in around 3-4g net carbs per square (about 10g). Milk chocolate and most "dark" bars labeled 55-70% are not. They contain enough sugar to knock you out of ketosis.
For the first few months of keto, I thought chocolate was just gone. Off limits. Not something I got to have anymore. Then I found an 85% bar at Trader Joe's, broke off a square, and waited to be disappointed. I wasn't. It was bitter, intense, almost savory. Exactly two squares felt like enough. That was the shift I needed.
The 85% rule
The rule is simple: 85% cacao or higher. That's the threshold where the sugar drops enough to make it work on keto. A 10g square of 85% dark chocolate has roughly 3-4g net carbs. One square of a Lindt 90% bar has about 2g net carbs. You can fit that into your daily macros. Compare that to a 70% bar, which might look dark but can have 8-10g net carbs per square. The cacao percentage isn't a flavor preference. It's a carb count.
What I keep in the pantry for baking
For baking, I keep two things in my pantry: unsweetened cocoa powder and unsweetened baking chocolate. A tablespoon of unsweetened cocoa powder (about 5g) has around 1g net carbs and delivers deep chocolate flavor to keto brownies, chocolate pudding, and hot chocolate. Dutch-process cocoa is darker and more mellow; natural cocoa is sharper and more acidic. Both work on keto, but they're not interchangeable in recipes that call for baking soda (natural cocoa reacts with it, Dutch-process doesn't).
Keto chocolate chips
Keto chocolate chips are their own category. Lily's (sweetened with stevia and erythritol) and ChocZero (sweetened with monk fruit) are the two I use most. They're about 1g net carbs per tablespoon. One thing to know: both brands melt differently than regular chocolate chips. Lily's gets a little grainy when overheated; ChocZero holds up better for drizzling and dipping. For cookies and muffins where the chips just need to soften and hold their shape, either works perfectly.
The "dark chocolate" trap
The trap I see people fall into is buying chocolate that's labeled "dark" without checking the percentage. A lot of mass-market dark chocolate is 55-65% cacao. That sounds meaningful until you look at the nutrition label and see 12-15g of sugar per serving. Brands like Dove "Silky Smooth Dark" and Hershey's Special Dark are in this category. They're dark-adjacent, not keto-friendly.
Store chocolate bars and chips away from heat and moisture. A cool, dry pantry is fine. The fridge works but causes condensation when you bring it back to room temperature, which leaves a whitish film (it's harmless, but annoying). I keep opened bags of chocolate chips in a sealed jar so they don't absorb odors from the pantry.