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Royal Canin Size Health Nutrition Large Puppy Dry Dog Food, 40 lb
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Royal Canin Size Health Nutrition Large Puppy is a dry kibble diet formulated for growing large-breed puppies, available through Mixlab. This is an over-the-counter food product; no prescription is required.

Chicken by-product meal, corn, wheat, chicken fat, wheat gluten, brewers rice, natural flavors, brewers rice flour, dried plain beet pulp, corn gluten meal, monocalcium phosphate, sodium aluminosilicate, vegetable oil, salt, calcium carbonate, potassium chloride, powdered psyllium seed husk, pea fiber, fish oil, taurine, fructooligosaccharides, choline chloride, hydrolyzed yeast, marine microalgae oil, DL-methionine, vitamins[DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), biotin, D-calcium pantothenate, vitamin A acetate, niacin supplement, folic acid, pyridoxine hydrochloride (vitamin B6), vitamin B12 supplement, thiamine mononitrate (vitamin B1), vitamin D3 supplement, riboflavin supplement], trace minerals[zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, manganous oxide, copper sulfate, sodium selenite, calcium iodate, copper proteinate], marigold extract (Tagetes erecta L.), glucosamine hydrochloride, Yucca schidigera extract, chondroitin sulfate, carotene, rosemary extract, preserved with mixed tocopherols and citric acid.

Royal Canin's Size Health Nutrition line is built around a puppy's expected adult body weight. This large-breed puppy formula is designed with a calibrated calcium-to-phosphorus ratio and a controlled calorie density intended to support the slower, steadier growth rate that large-breed dogs need, along with kibble sized and shaped for a large puppy's jaw.

The formula is complete and balanced to AAFCO nutrient profiles for growth of large-size dogs, and includes an antioxidant complex as part of its standard nutrient package. Feeding amounts are based on your puppy's current weight and expected adult weight.

This description reflects the product's standard feeding guidelines; your veterinarian can help you confirm this formula and portion size are right for your dog.

This is an over-the-counter product. Use according to the product labeling and your veterinarian's guidance. Available through Mixlab.

As with any diet change, introduce this food gradually over 5–7 days by mixing increasing amounts with your puppy's current food to reduce the chance of digestive upset, and keep fresh water available at all times. Because large-breed puppies are especially sensitive to overfeeding and excess calcium during the growth phase, follow the feeding chart for your puppy's expected adult weight rather than free-feeding. Contact your veterinarian if you have questions about growth rate or body condition, or if you notice vomiting, diarrhea, or other signs of an adverse food reaction.

Do I need a prescription for this food?

No. This is an over-the-counter nutrition product and does not require a prescription. It's available for purchase directly through Mixlab.

Why choose a large-breed puppy-specific formula instead of a general adult food?

Royal Canin's Breed and Size Health Nutrition formulas are built around traits like expected body size, coat type, jaw shape, and activity level. A large-breed puppy formula tailors kibble shape, texture, and nutrient levels to those traits; your veterinarian can advise on whether a breed-specific or general formula best fits your dog.

How do I transition my dog to this food?

Gradually mix increasing amounts of the new food with your dog's current food over about 5 to 7 days. This gradual transition helps reduce the likelihood of digestive upset.

How much should I feed my dog?

Follow the feeding guidelines on the package, which are based on your dog's weight, age, and body condition. Your veterinarian can help you fine-tune portions for your individual dog.

Mixlab is a licensed veterinary pharmacy dispensing both compounded and commercial medications, operating under the oversight of licensed pharmacists and in compliance with applicable state and federal pharmacy regulations. Compounded medications are prepared in compliance with USP standards and under PCAB-accredited practices. All medications dispensed by Mixlab require a valid prescription from a licensed veterinarian.
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