egg yolks?

Hello, I am introducing raw egg yolks into my kitties diets. I get pastured eggs soy free....very clean source. My question is- will this create an imbalance with calcium absorption? I think it is the phosphorus in abundance that can cause a problem, or atleast that is what I think I have read. I have one kitty even though on raw diet still regurgitates too much to not cause concern. So this supposedly should help if it is hairballs. Another kitty eats canned but the raw egg is my way of transitioning to all raw eventually and the other just because he loves everything and anything. But I don't want to cause problems in a different area trying to solve a problem. Should I counteract the eggs with a calcium source?

The one with regurgitation immediately after eating is my biggest concern. It's become to regular. I did switch her from Primal raw to Radcat just in case it is a bone problem. I also now spoon fed her to slow down her gulping. I am hoping it is not an esophagus issue......

If I mix the egg yolk with raw goat milk will I bypass any calcium absorption problems?