
Crafted for dogs that go.
If your dog is your adventure partner — the one who matches your pace on the trail, in the gym, and everywhere in between — their nutrition needs to keep up. Element Series is NutriSource®'s highest-performance formula, built for the dog that earns their meal.
A purposeful and intentional approach to pet nourishment
The Good 4 Life® System
We all want our pets to live long and thrive which requires daily nutrition that is intentional on multiple levels. The proprietary ingredient system - Good 4 Life® - works from the inside out. It optimizes nutrient absorption and supports the microbiome and gut-brain axis - key drivers of digestion, immunity, and overall well-being.
Empowering Nutrient Absorption
Bioavailability is the technical term and our #1 focus. It measures the percentage of nutrients in food that a pet's digestive system can actually convert and use. The Good 4 Life® approach ensures formulas that are nutrient dense nutrition, delivering more nourishment for dogs and cats because it aligns with how their bodies receive fuel.
The Power of Rotating Proteins
Rotational Feeding is our philosophy of cycling proteins — chicken, beef, fish, turkey — to expose your pet to the full spectrum of amino acids their body needs. With the Good 4 Life® System, your pet’s gut is ready roll with more variety.
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The Element Series Difference
Built for dogs that go hard.
Element Series is the only formula in the NutriSource® family engineered specifically for high animal protein diets. At the center is Good 4 Life® PLUS enhanced with NVGEN, a proprietary blend that optimizes the microbiome for full utilization of every gram of animal protein consumed. More protein absorbed means more fuel when and where it counts.
Every ingredient has a job.
Key amino acids DL Methionine, Choline Chloride, Taurine, and L-Arginine support heart health and whole-body function. Proteinated minerals deliver deeper bioavailability and immune support. Omega-3 and Omega-6 fatty acids maintain skin and coat through heavy activity. Sel-Plex, DHA, and select fruits and vegetables protect at the cellular level, supporting recovery and long-term vitality.
Cats are built for protein.
Cats are obligate carnivores. Their biology demands animal protein, and Element Series delivers it. Every recipe contains at least 80% animal protein, formulated around what feline evolutionary biology actually requires. Good 4 Life® Plus and NVGEN optimize the gut microbiome to fully utilize that high protein load, so every gram consumed becomes fuel your cat's body can use.
Every ingredient has a job.
Grain-free dry and wet recipes give you flexible, protein-forward options built for Rotational Feeding without compromising a cat's sensitive system. Proteinated minerals support deeper bioavailability and immune function. Sel-Plex, DHA, and select fruits and vegetables protect at the cellular level, supporting recovery and long-term vitality. Less fuss in the litter box. More performance in the bowl.


