The bears are not a problem. I have even camped in small tents in all these areas. Unlike the lower 48, Canadian and Alaskan bears are not habituated to humans as a source of garbage and food. The wilder your camp is, the less likely to bump into a bear. Even in Denali where the human density of the entrance area campgrounds approach lower 48 campgrounds, there are no bear problems.
There are plenty of statically studies done in Alaska and Canada showing that those humans who carry guns are considerably more likely to be killed by a bear than not. One reason is that should you be charged by a grizzly, over 95% of the charges are bluff charges. If you shoot a charging bear, you will not likely kill it, no matter what you use to shoot it with, but really piss it off making the charge no longer a bluff. Another finding is that bears, like dogs, can tell nervousness in humans. Humans that tote guns in fear, give off a different odor than those that do not carry guns, an odor the bears find unpredictable and threatening.
Grizzlies are vegetarian and pescarian for the most part. They really are not interested in you. Most charges happen when a bear is surprised and with young. When hiking it is helpful to stay in open country where you will not surprise and grizzlies. Always walk close with others you are hiking with. The more people in a group the less likely to be of interest to a bear. In Alaska, no group of 4 or more hikers closely together have ever been charged. Practically every altercation with a bear is an alone hiker. Do not bring dogs to bear country, they run after bears and when the bears turns to chase the dog away, your dog will run to you for help.
Leave the meat, smelly cheese and fish at home. Your heart and arteries will thank you. If you must carry something to make you feel better, powerful pepper sprays have proven to be a better deterrant of bears with less likely hood of a human death in the end.
I have been through Canada, Arctic Canada and Alaska many times. To actually even see a grizzly or wolf is unlikely outside of Denali Nat. Park. The most dangerous animal in the north that kills the most humans (even if we don't count car accidents) is the moose.
