Worry not re nutritional balance. Much of the problem iswith absorption

If you give 1/4 tablet of spirulena with chicken or turkey, that will give her all she needs. From health food shops

This is advice from family .. and to avoid all dry food; by its very nature it has stabilisers which are chemicals.

Fat free yoghurt, low fat cottage cheese...

BUT leave her on chicken, and try raw minced mixed in with cooked, for two weeks . Or turkey.

I do a lot of short walks with collie; three times around the house....it keeps her limber without being too much, and they play also...same as for us oldies;little and often