How many carbs suggested daily

I’ve had pre diabetes for about 10 years & researched a lot in the beginning. If I remember correctly, 40-60 carbs daily was recommended. My husband was just diagnosed as well. The literature he received says 50-75 per meal. I’ve been denying myself breads, potatoes & the like. If I’m able to eat more carbs, that would be great, however I didn’t want to just add them without checking.

Any suggestions?

Thanks!