WHAT IS THE BEST DOG FOOD FOR A PUPPY AND A ADULT YORKIE. bUT HERES THE FUNNY PART: I NEED FOOD THAT WOULD HELP MY FEMALE PUPPY YORKIE HAIR TO THICKIN AND GET A SILKY COAT. AND FOR MY MALE HIS 10MONTHS AND I WANT TO BUILD MORE MUSCLES AND LOSE ADOUT 1.5LB. WHAT TYPE OF FOOD SHOULD I USE OR SHOULD I SAY BRAND THANKS