Kosher foods aren't specifically gmo free.
A complete list of gluten free foods can be found on the About website listed under gluten free foods. Information is also available on sites such as WebMD.
The reason behind the recent wave to trans fat free foods is that they are seen as being healthier. This is because trans fat free foods can lower cholesterol.
yes
no
Yes. To help you start, here is a link of many gluten free foods. http://www.glutenfreeinfo.com/Diet/glutenfreeinfo.htm
A gluten free diet is basically eating foods that do not contain any amount of gluten in it basically eating foods that are "gluten-free". This may narrow down your food choices considering most foods contain some sort of gluten.
Celiac
they can, but they don't all.
depends on what the ingredients is.
No fat in fat free foods, but the sugar and carbs left over that you don't burn as energy is stored as body fat.
There are several foods like gluten free rice cakes, cereal, oatmeal, wheat bread, and fat free and reduced sugar ice cream.