You are lucky.
I was "lucky" unit I hit my mid twenties...
Do you smoke?
That seems to help with weight gain. I don't smoke.
Check out
http://www.lecarb.net. You will find ice cream, 7 flavors, 3 more coming(frozen dessert), yogurt 7 flavors(yocarb) and Milk(dairy drink) homo, 2% and Chocolate. Low carb and low or no sugar alchols. Fred.