Sure, keto protein powders aren’t totally necessary to your weight-loss success, but, oh, the convenience! As any devotee knows, it’s hard to beat the grab-and-go factor. Still, you’ll want to make sure you’re getting enough out of your powder.

Not all protein powders are created equal—nor are they all keto-friendly, so buyer beware. The keto diet is all about hitting that magical balance of about 70 percent fat, 20 percent protein, and 10 percent carbs in your diet in order to achieve ketosis and start torching mega calories. (ICYDK: Ketosis is when your body burns fat instead of glucose). So, your protein powder needs to offer up a whole lot of healthy fats and practically zero carbs.

Weiss also says to be extremely mindful of any artificial ingredients when considering supplementing your keto diet with a powder. “It almost defeats the purpose of a keto diet is when you’re taking in protein powders that are inflammatory, and then you’re trying to eat an anti-inflammatory diet,” she says.

And even with a protein powder, you’re probably going to have to BYO-fat to nail those perfect keto diet ratios. Shames recommends using an avocado base or mixing in a bit of MCT oil or coconut oil to your powders.

“The ketogenic diet is a high-fat diet, so you want to make sure that you are adding quality fat sources to your protein powders,” says Jalali.