To make a protein, amino acids are linked together in a long chain. The chain is then bundled into to a three-dimensional structure, like a tangled ball of yarn. Although there are hundreds of different amino acids, only 21 are used in animal proteins.
Proteins are the essential building blocks of all tissues and organs of the body including:
- cartilage, tendons and ligaments (collagen and elastin)
- the element of muscles that contract (actin and myosin)
- skin, hair and nails (keratin)
- blood proteins (haemoglobin, transferrin, albumin and globulins)
- enzymes
- hormones
- antibodies
Proteins are often described as the 'backbone' of cells because they have a structural role in all cell walls. Proteins are required for all tissue growth, replenishment and repair.
Tasty Tips
If there is more protein available than necessary for building blocks, proteins may also be used as a source of dietary energy.
Related products
Adult Perfect Weight & Joint Support Chicken & Brown Rice Recipe Dog Food
This weight management and mobility support dog food was created with Hill’s unique understanding of the biology of overweight dogs.
Healthy Mobility Large Breed Chicken Meal, Barley & Brown Rice Recipe Dog Food
Advanced nutrition shown to support joint health and improve mobility
Puppy Sensitive Stomach & Skin Salmon & Vegetable Stew
Gentle on stomachs while nourishing skin & supporting development in growing puppies
Adult 6+ Large Breed Chicken Meal, Barley & Rice Recipe Dog Food
Supports energy level, joint health, and beautiful coat in large breed mature dogs
Related articles
Show some love with wet foods: a great choice for pets with health issues
Show some love with wet foods: a great choice for pets with health issues.
Water
Water is the most important nutrient of all and essential for life. Animals can lose almost all their fat and half their protein and still survive, but if they lose 15% of their water, it will mean death.
The Right Diet For Your Pet
Learn what to look for in healthy pet food & nutrition, including ingredients, quality of the manufacturer, your pet's age, and any special needs they have.
Pet Food Storage Tips
Where you store your cat and dog food can make a big difference in the quality and freshness once it is opened. Here are some common questions and recommendations for optimal storage for all of Hill’s dry and canned cat and dog 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.