IAMS Proactive Health Mature Large Breed Dry Dog Food — Chicken, 30 lb | Digestive & Joint Support for Senior Dogs

IAMS Proactive Health Mature Large Breed Dry Dog Food is a chicken-first, science-informed kibble formulated to support digestion, immune health, brain clarity, joint strength and dental care in older large-breed dogs.

This formula from IAMS is built around real chicken as the top ingredient and avoids fillers and artificial flavors, delivering balanced nutrients for mature large breeds. Designed to meet the needs of senior dogs, the recipe brings together natural fibers, prebiotics, antioxidants, select grains and targeted nutrients like DHA Gold to help keep your dog active, alert and comfortable as they age.

How does this food support digestion for older large-breed dogs?

The recipe includes a tailored mix of natural fiber and prebiotics to encourage steady digestion and healthier stools in senior dogs. Gentle digestion helps maintain energy levels and nutrient absorption as metabolism changes with age.

• Natural fiber blend to regulate digestion and bowel consistency
• Prebiotics to promote beneficial gut bacteria balance
• Formulated for large-breed seniors with digestibility in mind

What nutrients help immune function and reduce oxidative stress?

IAMS adds a targeted antioxidant mix—featuring Vitamin E and beta carotene—to help older dogs maintain a robust immune response. Antioxidants support cellular health by helping neutralize free radicals that increase with age.

• Vitamin E and beta carotene for antioxidant support
• Balanced minerals and nutrients to support vital organs
• Ingredient selection aligned with natural definitions under AAFCO

Will this food help my dog stay mentally sharp and see better?

The formula contains DHA Gold, an omega-like component selected to support mental and visual clarity in aging dogs. Regular feeding as part of a complete and balanced diet can help maintain cognitive engagement and responsiveness.

• DHA Gold to support brain and vision-related nutrients
• Complete protein from real chicken to sustain muscle mass
• Energy from select grains to fuel daily activity without excess

How does the kibble help with joints, dental health and overall mobility?

Essential minerals in the recipe support joint and skeletal health, while the crunchy kibble helps reduce plaque buildup that can contribute to bad breath. These combined features help older large-breed dogs stay more comfortable and engaged in daily life.

• Balanced minerals to support bones and joints in large breeds
• Crunchy texture to help minimize plaque and tartar buildup
• Calorie and nutrient profile tuned for mature energy needs

Who is this recipe best for? IAMS Proactive Health Mature Large Breed Chicken formula is crafted for large-breed dogs entering their senior years whose owners want a veterinarian-recommended, chicken-first kibble without fillers or artificial flavors. It suits dogs that need targeted digestive support, immune-nutrient boosters, joint-friendly minerals, and mental/visual support—delivered in a complete, AAFCO-aligned diet for everyday feeding.

Ingredients

Chicken, Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate), Ground Barley, Ground Whole Grain Corn, Ground Whole Grain Sorghum, Soybean Meal, Dried Plain Beet Pulp, Natural Flavor, Dried Egg Product, Calcium Carbonate, Marine Microalgae (source of DHA), Caramel Color, Potassium Chloride, Carrots, Fructooligosaccharides, Choline Chloride, Vitamins (Vitamin E Supplement, Ascorbic Acid, D-Calcium Pantothenate, Biotin, Thiamine Mononitrate (Vitamin B1), Vitamin B12 Supplement, Vitamin A Supplement, Niacin, Riboflavin (Vitamin B2), Pyridoxine Hydrochloride (Vitamin B6), Vitamin D3 Supplement, Folic Acid), Minerals (Ferrous Sulfate, Zinc Oxide, Sodium Selenite, Manganese Sulfate, Copper Sulfate, Potassium Iodide, Manganous Oxide), Beta-Carotene, Mixed Tocopherols (preservative), Citric Acid (preservative), L-Carnitine, Rosemary Extract