The threat of free radicals
Cells are continually under attack from compounds called 'free radicals'. Generated as a 'by-product' of the body's own metabolism or as a result of external factors like pollution, free radicals can kill cells by damaging the membrane, the enzymes and the DNA contained within. Free radicals pose a particular risk to the cells of the nervous and immune systems, and they are even thought to contribute to the progression of many diseases and the onset of premature ageing.
How antioxidants help
Antioxidants help prevent the free radicals from damaging cells. Whilst the body's normal antioxidant defenses provide some protection, the addition of antioxidants to the diet provides an additional 'active shield' that supports those natural defenses.
Tasty Tips
Clinically proven antioxidants
Hill's pet foods contain a unique combination of antioxidants such as vitamins E and C, beta-carotene and selenium, and that superior antioxidant formula has been clinically proven to help maintain your pet's health, reduce the risk of disease and strengthen the immune response.
Protecting puppies and kittens
Because puppies and kittens are particularly at risk from free radicals, Hill's pet foods contain antioxidants clinically proven to help build healthy immune systems right from the start.
Related products
Adult Large Breed Chicken & Barley Recipe Dog Food
Supports healthy joints, immune system, digestion, lean muscle & beautiful coat
Adult Large Breed Lamb Meal & Brown Rice Recipe Dog Food
Supports healthy joints, immune system, digestion, lean muscle & beautiful coat
Adult Chicken & Barley Recipe Dog Food
Supports healthy immune system, digestion, lean muscle & beautiful coat
Adult 7+ Chicken Meal, Barley & Rice Recipe Dog Food
Supports energy level & beautiful coat. Helps keep immune system, heart & kidneys healthy
Related articles
The Incredible Science Behind Your Pet's Microbiome
Learn what a pet's microbiome is, how it contributes to your pet's gut & overall health, and why nutrition is important in maintaining healthy microbiomes.
Pet Food Storage Tips
Discover how and where to store your dry, as well as canned, dog and cat food. Learn how to find the "best before" dates on all Hill's pet food packaging.
Compare Your Pet Food's Calories to Other Brands
Compare Hill's Science Diet dog and cat food's calories against other pet food brands and AAFCO recommended maximum calorie count.
What Nutrients Can Help a Pet’s Immune System?
Learn why nutrients like antioxidants & amino acids can help improve your pet's immune system, as well as top antioxidants to look for in pet food.
Put your pet on a diet without them knowing
Our low calorie formula helps you control your pet's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Put your pet on a diet without them knowing
Our low calorie formula helps you control your pet's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.