CoQ10 (Coenzyme Q10) and Krill Oil are two of the most researched nutrients for supporting heart health, cellular energy, and healthy ageing in companion animals. As pets age, their ability to synthesise these compounds naturally declines — making dietary supplementation increasingly important.
What is CoQ10?
CoQ10 is a fat-soluble antioxidant found in virtually every cell of the body. It plays a critical role in the mitochondrial energy chain — essentially, it helps cells produce energy efficiently. The heart, which never stops working, has one of the highest CoQ10 concentrations of any tissue.
In dogs and cats, CoQ10 levels naturally decline with age and can be further reduced by certain medications, including statins (used occasionally in veterinary cardiology). Research suggests supplementation may help support:
- Cardiac function in older dogs, particularly breeds prone to dilated cardiomyopathy (DCM) such as Dobermanns and Boxers
- Energy levels in ageing pets who seem less active
- Antioxidant defence, reducing oxidative stress associated with chronic disease
What is Krill Oil — and how is it different from fish oil?
Krill Oil is derived from Antarctic krill (small crustaceans) and is rich in omega-3 fatty acids (EPA and DHA), similar to fish oil. The key difference is bioavailability: the omega-3s in krill oil are bound to phospholipids, which are absorbed more efficiently than the triglyceride-bound omega-3s in standard fish oil.
Krill oil also contains astaxanthin, a potent antioxidant that gives krill their reddish colour and provides additional anti-inflammatory protection.
Benefits supported by research include:
- Reduced joint inflammation — particularly relevant for overweight pets and large breeds
- Improved coat condition and reduced skin irritation
- Support for cardiovascular health
- Cognitive support in senior pets
Who benefits most?
Both supplements are most beneficial for senior pets (7+ years for dogs, 10+ for cats), overweight animals with joint stress, and breeds genetically predisposed to heart conditions. As always, consult your vet before starting any supplement regimen, especially if your pet is on existing medication.
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