Hi. You are a great support to hubby. I hope he appreciates you. GL is a very suitable diet or plan for life for a diabetic. A friend of mine who's type 2 diabetic is following GL. He is still on meds but much less than prior to GL. He has also dropped about 25lbs.
Give it a try for about four weeks or so.
Refined foods and carb rich foods all convert very quickly to sugar in our bodies.
Ideally, yes, cutting out bread, potato, pasta and rice is the best way. This is because so little if these foods affect blood sugars. Would hubby prefer half a potato or 3/4 tin of broad beans mashed? The broad beans will be so filling.
Bread can be replaced with rye crackers, oatcakes or rye bread or very small amounts of wholegrain( 1 slice a day).
Potato, pasta and rice can all be replaced by using all sorts of beans( borlotti, flagelot, broad, kidney etc etc), lentils, pearl barley, couscous. Google recipes for these. There is so much tasty ways to use them.
Diabetes can have very severe consequences if not properly managed. Diet plays a huge part in managing it.
Get a book on GL by Nigel Denby or Patrick Holford. Winnie Chan's gi&gl counter is a fab handy reference giving both cals and whether it is high low or medium GL
When eating your food leave all the starchy food to one side. Eat the protein and green veg first then eat a little of the starchier bits.