A few months ago I rescued a male beardie from a neighbor who apparently abandoned him in her apartment when she moved. He was very aggressive and thin but since then I've managed to get some meat back on his bones and he's looking a lot better than when we first got him the only issue it I recently noticed that his poop has been very runny and the worms I feed him (wax and silks) have been completely undigested in his excrement.
Besides the worms, I also feed him Rep-Cal's adult bearded dragon food, collard/mustard/turnip greens, wheat grass, butternut squash, spinach, and shredded carrots on a regular basis. I don't think there's any intestinal parasites involved because I haven't found any foreign bugs in his poop either.
Does anyone have any ideas of what may be causing this?