My 70 something grandma very recently got a diagnoses of Type 2 diabetes and is now kinda moody and panicky whenever her sugar spikes-which is often 'cause she has no idea what's in her food. So I'm looking for ESL* old lady friendly resources - recipes, portion control, nutritional content of fruits and veggies, whatever you may think would be helpful.

*Been in the US since the 70s and worked here for 30 years as an engineer, but she's been going back to Russian a lot lately.

ETA: I should mention that she's not on insulin, which is why there's a stress on diet control.