More than a convenient texture
In a paste complementary feed, the oil base does practical and nutritional work. It carries dispersed ingredients, creates a consistent texture, contributes energy and fatty acids, and makes the product simple to portion.
FieldStrength Naturals uses linseed and coconut oils in its pastes. They are sometimes grouped together because both are plant-derived, but their compositions are very different. Linseed oil is notable for alpha-linolenic acid, an omega-3 fatty acid. Coconut oil is dominated by saturated fats and helps create the paste’s physical base.
Understanding those roles prevents two common mistakes: treating every omega-3 source as interchangeable and claiming that ordinary coconut oil delivers the same effects as a purified medium-chain-triglyceride diet.
What linseed oil contributes
Linseed, also called flaxseed, is one of the richest plant sources of alpha-linolenic acid, or ALA. ALA is an essential fatty acid for dogs: it must come from the diet.
Dogs can convert some ALA into the longer-chain omega-3 fatty acids EPA and DHA, but conversion is limited and variable. This is why linseed oil and salmon oil should be seen as complementary rather than identical. Linseed supplies plant-based ALA; marine oils provide preformed EPA and DHA.
Canine feeding studies have shown that flaxseed or flax oil can change blood and tissue fatty-acid profiles. Research has also explored effects on skin and coat measures. However, results depend on the form, amount, background diet and duration.
One direct comparison in dogs found that a marine omega-3 source increased the Omega-3 Index more effectively than flaxseed-derived ALA. That is not evidence that linseed is useless. It clarifies what each source does best.
What coconut oil contributes
Coconut oil is often marketed using research on medium-chain triglycerides, or MCTs. The terms are related but not interchangeable. Coconut oil contains a mixture of fatty acids, while experimental MCT diets generally use carefully formulated and quantified triglycerides with a particular chain-length profile.
Studies in dogs have investigated MCT-enriched diets in areas such as cognitive ageing and epilepsy management. Those results should not be copied onto ordinary coconut oil or onto a joint-support paste. The tested diets, doses and clinical settings are different.
In FieldStrength Naturals pastes, coconut oil’s most straightforward role is as a stable, palatable fat base and source of energy. It helps deliver the wider blend in a convenient form. That is a real formulation function; it does not need to be inflated into a medical claim.
Because oils are energy dense, feeding directions matter. Adding several oil products on top of a complete diet can increase calorie intake quickly, which is especially relevant when healthy body condition is a priority for joint loading.
Why use both oils?
Linseed oil brings an ALA-rich fatty-acid contribution. Coconut oil helps provide the characteristic paste structure and carries fat-associated botanical compounds. Together they form a workable matrix for turmeric, rosehip, green-lipped mussel and the other ingredients.
The value of that matrix is consistency. A measured paste is easier to repeat than a home recipe assembled from kitchen oils and powders. Consistency is important when an owner wants to assess a dog over time.
The oil blend also illustrates why a formulation cannot be judged only by whether an ingredient is fashionable. The question is what each component contributes to the finished product.
Storage and oxidation
Unsaturated fats, including those in linseed and salmon oils, can oxidise when exposed to heat, light and air. Oxidation affects quality and palatability. Keep the product as directed, close it properly and do not use it beyond its stated shelf life.
Unusual or rancid odours deserve attention, although strongly flavoured marine and botanical ingredients naturally have character. If storage instructions are unclear, ask the maker.
Home-made blends can be harder to control because ingredient containers are repeatedly opened, proportions change and no finished-product shelf-life assessment has been made.
Sensible feeding
Use the labelled amount rather than adding extra oils independently. Too much fat can cause digestive upset in some dogs and may be unsuitable for animals with certain medical histories. Dogs with previous pancreatitis, fat intolerance, significant gastrointestinal disease or prescribed dietary restrictions should only receive additional fats after veterinary advice.
Introduce a new complementary feed according to directions and watch appetite and stools. Remember that a supplement adds to the diet; it does not make an incomplete diet complete.
If the goal is mobility support, manage the larger factors too. Keep the dog lean, match exercise to fitness, build workload gradually and investigate persistent stiffness or lameness.
Original and Joint+
In Maintenance — The Original Paste, linseed and coconut oils support an everyday formula for normal mobility, recovery, coat and condition. In Joint+, they provide the paste base around a more focused collagen, marine-lipid and botanical blend for joints and connective tissue.
Neither formula describes coconut oil as a treatment or linseed oil as a substitute for marine EPA and DHA. Their roles are useful precisely because they are defined.
The practical takeaway
Linseed and coconut oils are not filler. Linseed offers plant-derived ALA, while coconut oil contributes energy, texture and a practical carrier for the wider paste. Yet linseed is not nutritionally identical to salmon oil, and coconut oil is not the same intervention as a purified MCT clinical diet.
Good formulation means using each oil for the job it can genuinely do, controlling the finished texture and feeding amount, and resisting borrowed claims.
Read the complete formulation on our Ingredients page, compare products in the shop, or visit our FAQs.
Sources and further reading
- flaxseed fatty-acid metabolism in dogs, https://pubmed.ncbi.nlm.nih.gov/22005411/
- flaxseed and canine skin/coat study, https://pubmed.ncbi.nlm.nih.gov/11360337/
- plant versus marine omega-3 comparison, https://onlinelibrary.wiley.com/doi/full/10.1002/vms3.369
- canine MCT study, https://pmc.ncbi.nlm.nih.gov/articles/PMC7799411/
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