I have researched survival foods and found some very informative information available. You can check the livescience site, as well as wilderness-survival dot net.
There are a number of websites where information regarding wilderness survival tips can be found. These include Wilderness College and Wilderness-Survival.
The best survival foods are nuts, and dehydrated foods because they are light, and you can carry more then other foods which are hydrated, because water is so heavy. Another good survival food is meat, in the form of hunting.
There are many websites out there that list what foods contain gluton and what foods do not contain glutton. You can find them at the following link and I do truly hope that they help you: www.glutonfreefood.com/search/foods
WebMD as plenty of information and is the most "official" website that you will find for this type of information. Different foods react to blood types in different ways. There are charts set up to determine which foods are best for you.
Sysco foods have a well designed website. It includes a great deal of information about their company so I am sure this will help you get the information you need.
internet
If you are looking to work at Whole Foods and additional information about their jobs you can find this information on their website under the careers category.
One can find nutritional facts for McDonald's foods on a dietary website, for example 'Livestrong', allows people to track calories and provides information table on specific foods.
Survival and convenience.
The best foods for diabetics are meats, whole grains, fruits and veggies. You can find many options and recipes at http://www.diabeticlifestyle.com/
You can find information on diabetic foods on the countless diabetic websites that can easily be found on the web, as well, cooking books and menus for diabetics can be found in libraries, book stores, and cafe's across america.
There are multiple websites that will give you tons of information on diet foods. http://www.health.com/health/gallery/0,,20307363,00.html describes the foods you should not eat while trying to diet. http://www.yummydietfood.com/ this website gives you information on the foods that people enjoy while dieting and also supplies you with information on where to buy these diet food products.