My female black lab started loosing the color of her coat at 11 months. She's 14 months now. It's only on her tourso and is a redish/ chocolate color. I had her on Eukenuba Large Breed puppy dog food and switched to a different food with no difference. Do you all have any ideas? I've heard of adding an egg a day but haven't tried that yet. She's out of GRHRCH UH McMac Magic Eyes A 'Smilin MH QAA and NFC Road Warrior daughter if anyone with those lines have problems.