Ah, coconut balsamic, that's a new one on me. Have just done a bit of searching and found a good one in NZ. Might have to try that out.

Yes, am very familiar with the keto flu, from when I did all animal foods for a year. Not nice! But that was more high protein than high fat, so prob wasn't actually in ketosis then. But thinking about it now.

Oops, sorry, missed the smoothie link in the post.