Mrs Gnu,
Strange that, I was told the same last year by a DSN and diabetes consultant. Whilst they won't over excited about a carb reduction diet, they both agreed that 120-130g of carbs a day is sufficient to fuel the body. Their biggest concern regarding the low-carb approach, was the tendency to increase fat as a substitute for carbs, which they said was not advisable due to diabetics being at a higher risk of cardiac disease. As I eat a low-fat diet, this was not relevant to myself.
I vary from day-to-day, anywhere between 90-130g per day, and on special occasions a little more, but can function quite happy on 90g of carb as I can on 130g. More important is the variety of good wholesome foods that don't cause spikes, keep blood sugars stable, but are nutrient rich.
Regards
Nigel