Sorry if that note is confusing. It means the net carbs per muffin will be only 2g so it will be less with oat fiber.

I am so excited to see that I can substitute oat fiber for coconut flour! I like coconut but coconut flour in anything just tastes gross to me. I can't even really describe why. It's so hard to search for low carb recipes with no coconut flour. I'm so excited, to try these muffins and so many other recipes that call for coconut flour. In the note you say net carbs if substituting oat fiber for coconut flour is 2. Is that two additional net carbs or two total?

The muffins are full size and the net carbs calculated are 4g. Sorry for the confusion!

It should work for both but the amount may be a little more as coconut flour tends to be a lot more absorbent.

Any sweetener will work. You can use the conversion calculator to get the substitute amount.

About using oat fibre instead of coconut flour: would it work also for the filling or just for the muffin base? If this option is possible, the conversion would still be 1:1?

Thanks so much Laura! Glad you enjoy those keto recipes!