Giant breed puppies take between 18 to 24 months to reach their expected adult weight of 45kg+. During this time, their nutritional needs change, which is why Royal Canin has developed two different food varieties to ensure optimum support throughout. Between months 2 and 8, your puppy can enjoy Royal Canin Giant Puppy, before switching to this formula - Royal Canin Giant Junior - for the remaining development months between 8 and 18/24 months. Royal Canin Giant Junior contains tailored protein to support muscle development between months 8 and 18-24. It also offers nutrients such as vitamins C and E, which can help to support the development of your puppy's immune system. Extra-large dogs often struggle with sensitive digestive systems, frequently suffering with diarrhoea and flatulence. The combination of beneficial prebiotics (such as FOS, MOS and beet pulp) and highly-digestible proteins support balance in the gut microbiome, supporting healthy digestion in the best possible way. Royal Canin Giant Junior at a glance: Complete dry food for growing young dogs aged 8 to 18/24 months Optimum muscle maintenance: with a tailored protein content Strong bones: thanks to tailored levels of minerals such as calcium and phosphorus Healthy immune system: contains an exclusive nutrient complex including vitamins C and E Supports the microbiome: prebiotics and highly-digestible proteins Reduces rapid eating: the tailored kibble shape encourages your dog to chew The kibble of this Royal Canin Giant Junior has been designed to encourage your dog to eat more slowly. This is particularly important in larger breed dogs, as they can be at risk of stomach issues if they eat too quickly.