I posted a reply to this exact question in your other thread, but here it is again...
The orange cubes will not do you much good. Good for hydration, if anything. They're designed to keep the crickets alive, and not as a gut load. Repashy's Bug Burger is a good formula if you wanted something commercial, but here are some of the best things to feed them for gut loading:
Collard greens
Dandelion leaves
Turnip greens
Mustard greens
Escarole lettuce
Alfalfa sprouts
Butternut squash
Sweet potatoes
Carrots
Mango
Papaya
Oranges
Blueberries
Strawberries
Raspberries
Pumpkin seeds
Avoid:
Spinach
Broccoli
These have acids that will interfere with calcium absorption.
Lettuce and cabbage is just water with not much nutrients.
And the obvious - organic would be better, and wash to get rid of possible toxins (pesticides, etc.)