Fluker's Orange Cube Complete Cricket Diet
What a ripoff that stuff is! All you need to feed your crickets are chopped up fruits and vegetables. Buying anything more would be a ridiculous waste of money. Besides, crickets cannot live off of a high calcium diet that most gut load feeds are.
When it comes to using supplements, you should not use any one brand. The nutrition of captive reptiles and amphibians is not of much of a science as what you may think. We really do not know the nutritional needs of every single species, and it is ridiculous to think that one type of supplement is good enough for every type of reptile and amphibian in the world. You also cannot expect manufacturers to have the perfect kind of supplement, each manufacturer is going to use its own types of ingredients and manufacturing process that will ultimately make each one different. I highly recommend buying multiple types of supplements and using them on a rotating basis. If you do your best to eat fruits and vegetables every single day like you're supposed to, but you only eight apples and carrots, that would hardly be the nutritional diversity you need. The same is for supplements.
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...the oldest task in human history: to live on a piece of land without spoiling it."
Aldo Leopold (1938)
"Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us."
Calvin and Hobbes (Scientific Progress Goes 'Boink', 1991)