I always give fresh veggies proper protein etc ... Its the main diet mix I am having a problem with ... so far I have these seeds
Seed protein in 1 cup fat in 1 cup
White millet 22g 8g
Sunflower seeds 3g 128g
flax seeds 31g 71g
rolled oats 11g 5g
lentils 50g 2g
pumpkin seeds 40g 60g
sesame seeds 26g 72g
Wheat germ 27g 11g
peanuts 38g 72g
Safflower
Barley 23g 4g
Canary grass seed
oat groats 8g 4g
As for critters knowing whats best for them cats eat toxic plants all the time dogs eat chocolate one of my hamsters ate metal
What I said in my post still applies...low glycemic index seeds along with the stuff you're apparently already feeding (veggies and insects). If you're feeding whole insects, a few types of seed, and occasional plants then that's enough variety. No need to complicate things, hamsters don't eat dozens of seed types in the wild

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I don't know all of those seeds off the top of my head so you'll need to look up nutritional data.
If I had to come up with a possible diet off the top of my head right this second I'd do:
60% consisting of mix containing lentils, flax seeds, barley, pumpkin seeds, sesame seeds, small amount of sunflower seeds, small amount of split peas, small amount of whole oats, occasional nuts (peanuts and almonds)
20% consisting of whole insects (mealworms, crickets, earthworms, etc.) and eggs (chicken and/or quail)
10% grasses/plants (red clovers, garlic mustard, different types of grass, sprouts, dandelion greens, wood sorrel, etc.)
10% vegetables and flowers (leafy lettuces, nasturtiums, marigolds, rose petals/hips, etc.)
That's what I would do, anyway. There isn't a ton of data out there on the species' native diet (such as how much animal matter they consume) so it's partially a guess.