Keytal wrote:Thanks guys? Btw, may I ask something?
What is the consistency of your skinks' poop? I mean most of mines are pooping pretty firm and very dark/blackish. This particular female is now much better as I said, pooped black and firm but every time I give them dog food she has a runny poop (now I start to see some pattern). Right after I wrote how happy I am I went to the room and saw her pooping a runny one again. Now I start to think her digestive system has something against dog food. I feed only premium level dog food (select gold/royal canin) and none of my skinks has any problem with it only she does.
It's most likely the antibiotics.
If a human is on antibiotics, the same thing happens, it becomes runny. The antibiotics kill the 'good' bacteria in your gut along with the bad. That's what leads to it being runny.
Once her antibiotics are complete and she's feeling better, things should return to normal on their own.
the only questionable food would be the spinach (and possibly broccoli) - heard mixed reviews on both of these (some claim it they be toxic for reptiles, others seem to say it's completely fine.. difficult to find scientific research specifically for Blueys on this). 
Fat has a bad reputation before (as without going to deep into it, they did tests on herbivores such as rabbits, then concluded fats must be bad because they can't digest it/had bad cholesterol.. instead of testing on omnivores). There is more and more evidence recently showing that fat isn't as scary as we think and actually has health benefits. It can be argued that in the wild, if omnivores find a carcass - they'd consume both the fatty and leaner parts.