Is cocoa powder ok to be fructose free? I had assumed I would need to switch to cacao powder but I notice many of the recipes here us cocoa.  Thanks.

plain pure cocoa powder is fine, make sure it's not the drinking chocolate kind (that contains sugar).  I sometimes use cadbury or nestle, but the best is the plain old cheap brand while others use organic.  Not sure of the difference between cocoa or cacao powers haven't really tried cacao powder myself, but assuming you can use cacao powder however you may need to adjust quantities if it tastes stronger.

Without checking cocoa I think it's probably OK. But I suggest avoiding drinking chocolate which is loaded with sugar.

Check the labels and avoid anything with more than 2%  "sugars".  It's easy really :-)