Nordic Naturals Omega-3 Pet Review: Fish Oil for a 10-Year-Old Lab

Biscuit is ten now. Yellow Lab, about 78 pounds, and for most of his life he met me at the truck every morning with a tennis ball already in his mouth. These days he gets to the top of the four brick steps in my backyard and stops to think about it first. That pause is why I started reading supplement labels at all. Nordic Naturals Omega-3 Pet came into the routine in January 2026 on our vet's suggestion, and it has gone onto his morning kibble every day since.

I am not a vet. I am a high school soccer coach in Marietta, Georgia, who has spent twenty years watching people manage sore knees and ankles and who now does the same thing for a dog. What I can give you is what ten months of one liquid fish oil looked like in one house with one arthritic dog: what I measured, what I saw, what annoyed me, and the question I would ask before you spend anything on it. Biscuit was diagnosed with mild arthritis in both hips at his September 2025 checkup. He is steadier than he was in December. He is not cured, and I would not trust anybody who told me a bottle would do that.

How I've Used It

Our vet suggested adding a fish oil in January 2026. At that point Biscuit was about four weeks into Cosequin DS chewable tablets, which she had switched him to at his December recheck. Her reasoning was simple: the omega-3s were worth having on board for a dog his age, and it would run alongside the chew rather than replace it. She told me to use the label amount for his weight and not to double it because I was impatient and wanted the thing to work faster. I have heard that from her twice since, and she was right both times.

The routine is about as plain as it gets. Morning kibble goes in the bowl, I measure the label amount for his weight over the top, and that is the whole job. The evening meal stays plain. The bottle moves to the refrigerator door once it is open, which the label asks for and which I would do anyway in a Georgia summer. Ten months in, I cannot remember a morning I skipped it, and that is mostly because the whole thing takes less time than filling his water bowl.

I kept a note on my phone for the first month, mostly because I did not trust myself to remember whether I had done it or not. Every morning got a date and a check mark, and twice a week I wrote one line about how he got up off the floor. Reading those notes back now is the only reason I can give you anything specific in this review instead of a vague feeling that things got better. Week one and week two say the same thing: dull patch across the back, up from his nap fine, slow on the four steps, hesitates at the truck. Nobody should expect anything from the first two weeks of a fish oil, and I did not get anything.

He has never turned his nose up at a meal because of it. That surprised me. I had braced for a fight and a towel on the kitchen floor, and I got neither.

What Is Actually in the Bottle

The bottle reads 1380 mg of fish oil with EPA and DHA, 8 ounces, 237 milliliters. It is unflavored, which sounds like a marketing word until you have smelled the alternative. Nordic Naturals puts these oils in the triglyceride molecular form, which the company describes as the form naturally found in fish. The listing is non-GMO, gluten free and dairy free, with no artificial colors, flavors or preservatives. It also carries a fish allergen warning, and that one matters, because a dog with a fish allergy should not be anywhere near this bottle.

Before I bought it I did the thing I do with anything I take myself: I put the label next to a couple of salmon oils for dogs and read them side by side. Most of the pet shelf is salmon, with some whitefish and anchovy mixed in, and those labels are not written to make comparison easy. What I look for now is a stated amount of fish oil with the EPA and DHA named alongside it, plus a bottle size I can divide by a dose. This one gives you 1380 mg of fish oil, an 8 ounce bottle at 237 milliliters, and the fatty acids spelled out. Plenty of competitors put a big number on the front and nothing useful on the back. I have never fed Biscuit a salmon oil, so I will not pretend to compare results. On paper, this was the easier label to hold up against the rest of the shelf.

Here is the part I want to be straight about, because I see a lot of people get this wrong in their heads. The label lists coat, eyes and heart, plus immune support. It does not promise a single thing about hips. If you are shopping for a joint supplement and you land on this bottle, you are in the wrong aisle. My vet put it in the routine as an add-on. The glucosamine chew does the joint work in our house. This is the extra.

It is not a painkiller either, and nobody should read this and decide they can skip the vet visit or the x-rays. If your dog is limping, that is a diagnosis problem before it is a supplement problem.

Ten Months In: What Changed and What Didn't

The first thing I noticed was his coat. Around six or seven weeks in, the dull patch along his lower back that had been there all winter started to look better, and a woman at the park who has never spoken to me before stopped to tell me how shiny he was. That is the least medical observation in the world and I will still take it, because a ten-year-old Lab with a good coat is usually a ten-year-old Lab somebody is taking care of.

The second thing is harder to separate from everything else, and I want to say that plainly instead of taking credit for it. Biscuit started Dasuquin MSM soft chews in March 2026, so from spring onward he has been on the chew and the fish oil at the same time. I cannot sit here and tell you which one gets credit for him being smoother on the four back steps, or for the forty-minute walks coming back into rotation by late spring. What I can tell you is the whole stack is working better than any single piece of it did alone.

Pick a date, then. Second Saturday in April, a state park north of here with a gravel loop around the lake. He walked the whole loop, sniffed every post, and got back into the truck after his usual pause. Then he slept from the moment we got home until his dinner bowl hit the floor. That is the shape of a good day now: real effort, long nap. Six months earlier the same loop would have had him lying down in the shade halfway around. Nothing dramatic happened on that walk. He just did slightly more than he could have in December, and he paid for it slightly less.

What did not change: he still pauses before jumping into the back seat of the truck, and he still comes home from a short camping weekend and sleeps the rest of the afternoon. He does not come on the long hikes anymore. He stays home with Dale, my neighbor, on those weekends, and that is a decision about a ten-year-old dog rather than a knock on any bottle. He is steadier than he was, and steady is the honest word for it.

He still pauses at the top of the four brick steps. He just does not stand there as long as he used to.

The Boring Practical Stuff

It smells like fish, because it is fish. The refrigerator door smells faintly of it, the measuring spoon smells of it, and if you get a drop on the counter you will know about it. Biscuit does not care. I care a little. It is unflavored on the label and that is accurate in the sense that nothing has been added to mask it, which I would rather have than a fake bacon note in something my dog eats every morning for years.

The 8 ounce bottle is not enormous for a 78-pound dog on a daily dose, so I order before I run out rather than after. And measuring matters more than people think. I use a proper measuring spoon, I level it, and I do not eyeball a pour, because oil is easy to overdo and more is not better with a fat. That is exactly what our vet told me, and it is the one instruction in all of this I would pass along first.

I keep an unopened spare in the pantry now, because running out on a Tuesday and deciding to skip it until Thursday is how a morning routine quietly dies. For a camping weekend the bottle rides in a small cooler bag with an ice pack and comes inside with me when we get home, rather than sitting in a hot truck cab all Sunday afternoon. Heat is not kind to fish oil, and this is not a bottle I want to leave in the console. It measures 6 by 2 by 2 inches, so it fits the door shelf without moving anything around, which sounds trivial until you have rearranged the same shelf twice for a supplement you take every single day.

How It Fits With the Rest of His Routine

Biscuit takes one thing at a time around here, with our vet's okay on every change. Before the fish oil there was VetIQ Glucosamine Hip and Joint Chews, which I bought myself right after the diagnosis because it was the cheapest well-reviewed option on the page. It was a fair budget starting point and it did not do much. Then Cosequin DS chewable tablets from December through early March, which got him hopping into the truck again with a short pause first. Then Dasuquin since March, his current chew and the one I credit for the steps.

The fish oil has run alongside all of that since January. The only break in the entire routine came in July and early August 2026, when he had a tooth out and could not chew, so our vet okayed a liquid glucosamine on his soft food for about seven weeks. He healed, he went back to the Dasuquin, and the rest of that bottle sits in the pantry. Through every bit of it, the fish oil kept going on his morning kibble. It was the one part of the plan that never had to change.

Who This Is For

This is for the owner of an older, stiffer dog who already has the joint side of things handled and is looking for an omega-3 to run alongside it. It is for somebody who will actually measure, who will keep the bottle cold, and who will call the vet before starting rather than after. It is also for the person whose dog has gone dull in the coat and stubborn about pills, because a liquid that disappears into kibble solves a problem that chewable tablets sometimes cannot. If your dog is roughly where Biscuit was in January 2026, this is worth a conversation with your vet.

There is a second kind of reader this suits, and it is the one I was not expecting: somebody who is already feeding a joint chew and wants to know what else is worth adding without turning the routine into a pharmacy counter. One chew, one bottle, one spoon, ten seconds. That is a routine a real person can keep up on a school morning, and a routine you can keep up is worth more than a better plan you quit in three weeks.

It is a reasonable fit for a multi-dog household too, since the dose scales by weight and you are not trying to convince three dogs that a tablet is a treat.

Who Should Skip It

Skip it if your dog has a fish allergy, if your vet has your dog on a prescription diet, or if your dog takes medication that interacts with supplements, because those are all questions for a professional and not for a coach with a laptop. Skip it if you will not measure. Skip it if you are hoping this alone fixes a limp, since it is not a joint supplement and it is not a painkiller. And skip it if you want a chew you can toss across the kitchen, because this is a bottle and a spoon and ten seconds at the counter every morning.