hello Jassygyrl
I came accross your post while looking for where I saw that Whey Less was on special somewhere, but now can't find it (*darn*), anyway...
I use Whey Less and it works fantastically for me.
(I had gestational diabetes and am monitored regularly, but I don't have diabetes.)
Sorry I don't know whether it's suitable for diabetics.
Whey Less has a website (I'm not allowed to post website addresses)-it's its name, then dot com dot au-where you can ask questions, they might be able to help you with whether it's suitable for diabetics.
I usually buy mine from TVSN (on the tub it says "Exclusive to TVSN"), I think that's the only place you can get it at the moment (why I was interested to see it on sale somewhere else-might have been on ebay I think, anyway...)
I used to use IsoWhey Complete and also found it wonderful for my symptoms (bloating up like a puffer fish, & feeling lethargic).
IsoWhey Complete is still available from what I can see, although it doesn't seem they sell it from TVSN anymore.
IsoWhey Complete & Whey Less are made by Pharma Foods.
At the Pharma Foods website-pharma foods and professional all one word dot com dot au-you can find out where to buy IsoWhey Complete nearest you.
Whey Less works really well for me because it makes me feel (and look) normal.
When I do a little exercise it works even better!
So I've found both Whey Less and IsoWhey Complete work really well (I just decided to go with Whey Less because it sounds more like it addresses losing weight...).
Sorry I can't say whether it would be suitable for diabetics (if you look at the information on the website it seems it would be good for diabetics but you can ask them, & of course your doctor should be able to see if it's ok for you-the website has all the ingredients etc).
Sorry to ramble on, it's just that I love this product so much, it has greatly enhanced my life!
Wanted to give you all the information I can to help you.

all the best!
Ann