http://body.io/

I also like John Kiefer's bodyio and the sister podcast herbody, I think they're interesting whether you want to do carbnite or not, most of the information seems to be about the keto part of the diet and not the carb ups.

Not low carb, but I like to listen to the Unnatural Vegan on youtube once in a while, just to remind myself that not all vegans are unreasonable, and I shouldn't let my view of them be too slanted by some of the more outspoken radicals. Don't get me wrong, I don't think the diet itself is entirely sustainable, it's just possible to be wrong on some specifics without being generally unreasonable.

https://www.youtube.com/user/FitOnRaw