Jax is my thin boy. He's a picky eater and has problems keeping weight on. We feed 4health puppy formula to both boys. It's sold by
Tractor Supply but will be switching to the Diamond Brand Naturals on our next feed run.
The two are nearly identical in their ingredients:
4health puppy: Lamb, Lamb Meal, Egg Product, Cracked Pearled Barley, Millet, Ground Rice, Chicken Fat (Preserved With Mixed Tocopherols), Potato Protein, Oatmeal, Potatoes, Tomato Pomace, Flaxseed, Natural Flavor, Salmon Oil (Source of DHA), Ocean Fish Meal, Potassium Chloride, Choline Chloride, Dried Chicory Root, Kelp, Carrots, Peas, Apples, Tomatoes, Blueberries, Spinach, Dried Skim Milk, Cranberry Powder, Rosemary Extract, Parsley Flake, Yucca Schidigera Extract, L?Carnitine, Dried Fermentation Products Of Enterococcus Faecium, Lactobacillus Acidophilus, Lactobacillus Casei And Lactobacillus Plantarum, Dried Trichoderma Longibrachiatum Fermentation Extract, Vitamin E Supplement, Iron Proteinate, Zinc Proteinate, Copper Proteinate, Ferrous Sulfate, Zinc Sulfate, Copper Sulfate, Potassium Iodide, Thiamine Mononitrate, Manganese Proteinate, Manganous Oxide, Ascorbic Acid, Vitamin A Supplement, Biotin, Calcium Pantothenate, Manganese Sulfate, Sodium Selenite, Pyridoxine Hydrochloride (Vitamin B6), Vitamin B12 Supplement, Riboflavin, Vitamin D Supplement, Folic Acid.
Diamond Brand Natural for Large Breed puppies: Lamb, lamb meal, egg product, cracked pearled barley, millet, ground rice, chicken fat (preserved with mixed tocopherols), potato protein, oatmeal, potatoes, tomato pomace, flaxseed, natural flavor, salmon oil(source of DHA), ocean fish meal, potassium chloride, choline chloride, dried chicory root, kelp, carrots, peas, apples, tomatoes, blueberries, spinach, dried skim milk, cranberry powder, rosemary extract, parsley flake, yucca schidigera extract, L-Carnitine, dried fermentation products of Enterococcus faecieum, Lactobacillus acidophilus, Lactobacillus casei and Lactobacillus plantarum, dried Trichodermalongibrachiatum fermentation extract, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, manganous oxide, ascorbic acid, vitamin A supplement, biotin, calcium pantothenate, manganese sulfate, sodium selenite, pyridoxine hydrochloride (vitamin B6), vitamin B12 supplement, riboflavin, vitamin D supplement, folic acid.
We've decided to keep them on the puppy food until Kane is 2 years old; at which time Jax will be nearly 3. This is more for Jax's benefit, with his weight issues. Our boys also get raw meat, beef and chicken on a near-daily basis.
Your boy doesn't look severely underweight, more like Jax - just a little on the thin side. Only thing I know to do is to keep or put him back on puppy formula, which generally has more calories than adult food.