All beans are high in fiber and magnesium so they are good for most people. I can tolerate about a 1/2 cup of beans at a time. They also have resistant starch in them which is good for lowering bgs. But if you are supersensitive to carbs they may spike you. When I make chilli I put about twice the amount of meat and veggies to beans.
I made up a batch of chili today. Used 1/2 the beans I normally do, so it was pretty meaty. Basically used 2lb of ground sirloin, 1 full onion chopped, 2 cans of dark red kidney beans, one large jar of salsa, various seasonings (chili powder, crushed chilis, pepper, salt, garlic, etc.), lime juice and some habanero hot sauce.
Tested BGs: 6.9 (124) before eating a bowl, 7.3 (131) one hour after, did 25 minutes of cardio to help, then 6.4 (115) two hours after and back up to 7.1 (128) four hours after (the last reading was also a little after eating an apple w/ PB, so it may affect it somewhat.)
So yes, it spikes me a little. Exercise helped lower it, but they did creep up again after the exercise... as I'm guessing those beans take a little while to digest and convert to blood glucose.
For the occasional treat though, not bad, at least for me. I'm glad y'all told me to test or I might have just avoided them completely!
I will have to try the low-carb bean-less chili though and see how it is, thanks for posting the link!
So get out your trusty meter again & try small amounts. You might get lucky. 
