How Much Fish Oil Should I Give My Dog or Cat?
Wondering how much fish oil to give your dog or cat? Use this simple FAM Pets dosage guide by pet size, spray time, EPA, DHA, and how long one 5 oz bottle lasts.
Fish oil is one of the most popular daily supplements for dogs and cats. It gives pets omega-3 fatty acids like EPA and DHA, which help support healthy skin, a shiny coat, joint comfort, heart health, and overall wellness.
But one question matters most:
How much fish oil should I give my pet?
The right amount depends on your pet’s size, the strength of the fish oil, and how well your pet handles it.
At FAM Pets, we made daily Omega-3 simple with our Wild Alaskan Pollock + Salmon Oil Blend Spray. No spoon. No messy pouring. Just spray it onto your pet’s food and serve.
Simple FAM Pets Dosage Guide
1 second spray ≈ ½ teaspoon
| Pet Size | Daily Amount | Spray Time |
|---|---|---|
| Cats & small dogs up to 20 lbs | ½ tsp | 1 second |
| Dogs 21 to 40 lbs | 1 tsp | 2 seconds |
| Dogs 41+ lbs | 2 tsp | 4 seconds |
You can serve it once daily with food. You can also split the serving between morning and evening meals.
Start Slowly
When adding fish oil for the first time, start with a small amount.
Some pets have sensitive stomachs. Giving the full amount right away may cause loose stool or stomach upset.
A simple way to start:
Begin with half the suggested amount for a few days. Then slowly increase to the full daily serving if your pet is doing well.
This gives your pet’s body time to adjust.
How Long Will One Bottle Last?
FAM Pets Fish Oil Spray comes in a 5 oz bottle, equal to 147 mL.
Here is about how long one bottle lasts when used daily:
| Pet Size | Daily Amount | Spray Time | Bottle Lasts About |
|---|---|---|---|
| Cats & small dogs up to 20 lbs | ½ tsp | 1 second | 60 days |
| Dogs 21 to 40 lbs | 1 tsp | 2 seconds | 30 days |
| Dogs 41+ lbs | 2 tsp | 4 seconds | 15 days |
These are estimates. Actual use may vary slightly depending on spray length and serving style.
For most cats and small dogs, one bottle lasts about two months. For medium dogs, it lasts about one month. For larger dogs, it lasts about two weeks.
Why EPA and DHA Matter
Not all fish oils are the same.
The most important omega-3 fatty acids in fish oil are called EPA and DHA.
FAM Pets Wild Alaskan Pollock + Salmon Oil Blend provides, per 1 teaspoon serving:
| Nutrient | Amount Per 1 tsp |
|---|---|
| Total Omega-3 fatty acids | 1,000 mg |
| EPA | 414 mg |
| DHA | 230 mg |
EPA helps support skin health, coat health, joint comfort, and normal inflammatory response.
DHA helps support brain, eye, heart, and overall wellness.
When choosing fish oil, do not only look at the bottle size. Look at how much EPA and DHA your pet is getting.
How Much EPA and DHA Is My Pet Getting?
Based on the FAM Pets serving guide:
| Pet Size | Daily Serving | Omega-3 | EPA | DHA |
|---|---|---|---|---|
| Cats & small dogs up to 20 lbs | ½ tsp | 500 mg | 207 mg | 115 mg |
| Dogs 21 to 40 lbs | 1 tsp | 1,000 mg | 414 mg | 230 mg |
| Dogs 41+ lbs | 2 tsp | 2,000 mg | 828 mg | 460 mg |
This makes it easier to understand what your pet is actually getting each day, not just how much oil is being served.
Can Dogs and Cats Have Fish Oil Every Day?
Yes, many dogs and cats can have fish oil daily when served at the right amount.
Daily use is often better than giving it once in a while because omega-3s support the body over time.
But more is not always better.
Too much fish oil may cause:
- Loose stool
- Upset stomach
- Vomiting
- Fishy breath
- Greasy coat
- Loss of appetite
If your pet has a medical condition, takes medication, has a history of pancreatitis, or has surgery coming up, ask your vet before adding fish oil.
Why Freshness Matters
Fish oil is sensitive to air, light, and heat.
When fish oil is exposed to oxygen, it can start to lose freshness. Over time, some traditional bottles may smell stronger or become unpleasant.
Fresh fish oil should not smell harsh or rancid.
FAM Pets uses a bag-on-valve spray system to help protect the oil from air exposure. The oil stays inside a sealed inner pouch, while the spray system helps deliver a clean serving without opening the oil to air each time.
That means every spray is protected, simple, and easy to serve.
Why Spray Makes Fish Oil Easier
Pouring fish oil can be messy. Measuring teaspoons takes time. Some bottles drip down the side or leave fishy oil on the counter.
Spray makes daily omega-3 easier.
Just spray onto your pet’s food and serve.
No spoon.
No messy bottle.
No fishy floors.
It is especially helpful for pet parents who want a clean, simple daily routine.
Final Answer: How Much Fish Oil Should You Give?
Use your pet’s weight as the guide.
Cats and small dogs up to 20 lbs: ½ tsp daily, or about 1 second of spray.
Dogs 21 to 40 lbs: 1 tsp daily, or about 2 seconds of spray.
Dogs 41+ lbs: 2 tsp daily, or about 4 seconds of spray.
Start small, increase slowly, and serve with food.
One 5 oz bottle lasts about 60 days for cats and small dogs, 30 days for medium dogs, and 15 days for larger dogs.
Daily omega-3 can be simple when the oil stays fresh and the serving is easy.
Try FAM Pets Wild Alaskan Pollock + Salmon Oil Blend Spray for a cleaner, fresher way to add omega-3 to your pet’s bowl.