I am not a fan of free feeding, for tips you may find helpful see General Guidelines in this link http://www.homeovet.net/dynamic/php/downloads/dog-c8470f2c75dbe4b683205c3919ee2310/dog_diet_complete.pdf
I have recently discovered this site and find it informative http://skeptvet.com/Blog/category/nutrition/
My dog with allergies and a sensitive stomach does well on Nutrisca salmon and chickpea with a spoonful of cooked chicken added, plus a splash of water.
My 15 year old small breed does well on Wysong or Nutrisca kibble soaked in water overnight, a little cooked chicken added, plus water (hx of bladder stones)
I recently took the old guy in for a checkup and his lab work is better than mine, lol.
He has age related issues but otherwise healthy.
PS: I never leave food down, if they don’t eat within 20 minutes the food is picked up and put in the fridg, offered at the next mealtime.
