Hi comtnman740,
No idea on the itching but respect for volunteering with the homeless. That is a worthy cause! I have thought about doing similar. The homeless problem here in the UK gets steadily worse and worse. Our Govt. is in meltdown, politics in the UK has failed.
Low Sugar: My wife did the carb-free diet a few years backs and lost stones in weight, literally.
No bread, pasta, potatoes or rice
Berries (Strawberries/Blueberries)
All veg that grows above ground (carb in some veg is relatively high)
Meat
Dairy
Nuts (peanuts/walnuts)
All the best