I bought a bear box for this purpose. I got tired of trying to get the hang bag down in the middle of the night to get the sugar out. The guy who sold me the bear canister – which is admittedly the Cadillac (Tesla? Ferrari?) of all bear canisters – suggested that we keep a few candies in a smell proof Ziploc bags in the tent, and put the rest into the bear canister. He pointed out that bears generally won’t work very hard to get to the good stuff. He’s got over 40 years of backpacking experience and thousands of trail miles, although many in the Sierras (no grizzly bears). I trusted him.
Switching to the keto meals has really helped the nighttime lows – EH actually didn’t need any sugar on our last backpacking trip! That was amazing.
The bear canister guy will rent you one for cheap, and he has great suggestions and stories if you’re so inclined. He answers his phone. He said to stick the canister 40’ away or so from the tent, and place it somewhere that it won’t roll into a creek or off a cliff if inspected by bears.
The smell proof ziplocks I got were okay but not great. Less smelly candy would be good too. I might bring an empty water bottle and mix up some table sugar + water for next time. Smells less than flavored candy/powdered drink mix.
Also - EH wore his pod, which is full of insulin - and nothing even sniffed at our tent. In the past I’ve backpacked in non-bear-country with people who didn’t hang their food and their tents have been destroyed by mice/squirrels.
I think that the likelihood of you getting attacked by a bear for insulin is relatively low. Realistically, it depends on how habituated bears are to human smells. And how hungry they are. But it doesn’t seem likely.
Full disclosure: bears scare the everliving ■■■■ out of me. I’ve done a lot of research so I feel confident going out into the wilderness with someone who’s covered in insulin and sugar all the time. I chose to purchase the following Bear canister after realizing that I couldn’t open any of the other containers that exist out there easily. I am actually the only person I know with that problem. But you need to make sure that you can get the canister open if/when you are low/asleep.
This guy and his bear canisters are amazing:
These are really small:
25 Smell Proof Bags - 4x6 Inches by Interplanetary Development https://www.amazon.com/dp/B01IE8LV5M/ref=cm_sw_r_cp_api_i_SvY1Db3883X2B