Iams Large Breed Lamb & Rice (Adult, Dry)

Ingredients (verbatim, per manufacturer product page): Lamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley, Ground Whole Grain Corn, Ground Whole Grain Sorghum, Brewers Rice, Soybean Meal, Chicken Fat (preserved with Mixed Tocopherols), Dried Plain Beet Pulp, Natural Flavors, Dicalcium Phosphate, Flaxseed, Dried Egg Product, Caramel Color, Carrots, Potassium Chloride, Fructooligosaccharides, Choline Chloride, L-Lysine, Vitamins (Vitamin E Supplement, Ascorbic Acid, D-Calcium Pantothenate, Biotin, Thiamine Mononitrate (Vitamin B1), Vitamin B12 Supplement, Vitamin A Supplement, Niacin, Riboflavin Supplement (Vitamin B2), Pyridoxine Hydrochloride (Vitamin B6), Vitamin D3 Supplement, Folic Acid), Calcium Carbonate, Minerals (Ferrous Sulfate, Zinc Oxide, Sodium Selenite, Manganese Sulfate, Copper Sulfate, Potassium Iodide, Manganous Oxide), Mixed Tocopherols (preservative), Citric Acid (preservative), Rosemary Extract.

Guaranteed analysis (as fed, per manufacturer): Crude Protein (min) 22.5%, Crude Fat (min) 12.5%, Crude Fiber (max) 5.0%, Moisture (max) 10.0%. Energy 3,537 kcal/kg (335 kcal/cup) calculated metabolizable energy. AAFCO: Iams states this recipe is complete and balanced (IAMS states this Proactive Health Large Breed Lamb and Rice Recipe is 100% complete and balanced and contains 0% fillers.); formulated to meet the AAFCO Dog Food Nutrient Profiles for maintenance of adult dogs, per the label.. Lamb is the first ingredient.

Iams Large Breed Lamb & Rice is a dry kibble the manufacturer formulates for adult dogs, sold in 11 lb, 15 lb, 30 lb and 40 lb bags. On the label, ingredients are listed by pre cooking weight, and the first five are Lamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley, Ground Whole Grain Corn, Ground Whole Grain Sorghum. IAMS lists real lamb as the first ingredient here with protein also sourced from chicken by-product meal and egg, and the maker adds 7 nutrients it describes as supporting heart health for large breed dogs. The guaranteed analysis on the manufacturer's own nutrition panel lists 22.5% crude protein minimum and 12.5% crude fat minimum on an as fed basis, with 5.0% crude fiber maximum and 10.0% moisture maximum. The manufacturer's calculated energy content is 3,537 kcal/kg (335 kcal/cup). IAMS states this Proactive Health Large Breed Lamb and Rice Recipe is 100% complete and balanced and contains 0% fillers. Dogs who lose interest in a rotation often take it again with a single ingredient freeze dried topper crumbled over the top.

Consolidated from publicly available manufacturer information (link above), compiled Sep 18, 2026. Not tested or evaluated by Sniff and Shift. Not medical advice, verify on current packaging and consult your veterinarian.

Questions about Iams Large Breed Lamb & Rice

What are the first ingredients in Iams Large Breed Lamb & Rice?

As listed on Iams's product page, the first ingredients are Lamb, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley, Ground Whole Grain Corn, Ground Whole Grain Sorghum. The full list is on the spec sheet above.

How much protein and fat does Iams Large Breed Lamb & Rice have?

Iams publishes crude protein 22.5% (as-fed min) and crude fat 12.5% (as-fed min), with 3,537 kcal/kg (335 kcal/cup). These are the maker's published figures, not our measurements.

Does Iams publish an AAFCO statement for Iams Large Breed Lamb & Rice?

Iams states: Iams states this recipe is complete and balanced (IAMS states this Proactive Health Large Breed Lamb and Rice Recipe is 100% complete and balanced and contains 0% fillers.); formulated to meet the AAFCO Dog Food Nutrient Profiles for maintenance of adult dogs, per the label.

What kind of food is Iams Large Breed Lamb & Rice?

Iams lists it as dry kibble, adult dog food.

Where do these numbers come from?

Every figure on this page is transcribed from Iams's own product page, linked in the Source line above. Check the bag for the current label.

Source: Iams product page (iams.com). Figures are the maker's published values; check the bag for the current label.

Want to see how it stacks up? Use the dog food comparison tool to put any two foods next to each other.

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.

Marshall found himself a pretty nice spot at the car show 🧡 A few photos, a little treat break, a...We love Brembo! How could you not with those ears and that smile? Always happy to take a break fr...Ella and Shadow trying to get a picture together 😂 Ella’s ready for her close up and Shadow has a...

Ride along on InstagramCar meets, trail days, and new treats first. Follow @sniffandshift.

Follow @sniffandshift