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Ingredient profile

Olive Oil in Mighty K9: Fats, Calories and What It Can Do

Quick answer

Organic extra virgin olive oil is almost all of Mighty K9: about 1.8 g of fat and 16.2 kcal in each 2 mL serving. It is mostly monounsaturated fat and has no EPA or DHA, the omega-3 fats studied for dog joints. Extra fat can upset some stomachs, so go slowly with sensitive dogs.

Written by the Mighty K9 editorial teamUpdated

The carrier

Why is olive oil in Mighty K9?

Olive oil carries the ESS60. C60 dissolves in oil, not water, so an oil is needed to deliver it.

The bottle front says "Organic Extra Virgin Olive Oil," and the label lists it first. Crude fat reads 100% on the panel, so nearly every drop is oil. "Extra virgin" means the oil was pressed without heat or chemicals. "Organic" refers to how the olives were grown.

The ESS60 profile covers the carbon molecule itself.

An amber dropper bottle of Mighty K9 beside green and black olives on a branch
By weight, the bottle is nearly all olive oil. ESS60 is 1.6 mg in each 2 mL.

Nutrition

What kind of fat is in olive oil?

Olive oil is mostly monounsaturated fat, about 73 g in every 100 g. It has no EPA and no DHA, the long-chain omega-3 fats in fish oil (USDA, Olive oil).

Olive oil nutrition from USDA FoodData Central, and one Mighty K9 serving from the label
MeasureAmount
Calories per 100 g884 kcal
Monounsaturated fat per 100 g73 g
EPA and DHA0 g
One 2 mL serving: fatAbout 1.8 g
One 2 mL serving: calories16.2 kcal (label)

Calories

How many calories does the olive oil add?

Each serving adds 16.2 kcal, the same for every dog. That is a tiny share for a 70 lb Lab and a real one for a 7 lb Chihuahua.

One 2 mL serving10% guide for treats and extras
  • Toy, 3 kg (7 lb)

    6.3%
    About 255 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.53 mg per kg
  • Small, 5 kg (11 lb)

    4.3%
    About 374 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.32 mg per kg
  • Medium, 10 kg (22 lb)

    2.6%
    About 630 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.16 mg per kg
  • Large, 25 kg (55 lb)

    1.3%
    About 1,252 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.06 mg per kg
  • Giant, 40 kg (88 lb)

    0.9%
    About 1,781 kcal a day for a neutered adult · 1 serving = 16.2 kcal · ESS60 0.04 mg per kg

Bars run from 0 to the 10% line that WSAVA uses for treats and extras (WSAVA, Choosing food). Daily calories use 1.6 x the resting energy requirement (70 x kg^0.75) (Merck Vet Manual, Calorie needs); your dog's real needs depend on age, activity and body condition, so ask your vet. The label serving is the same 2 mL for every size.

Skin and coat

Is olive oil good for a dog's skin and coat?

The sales page says the olive oil supports skin and coat. We found no dog study of Mighty K9 or of 2 mL of olive oil a day for coat quality.

Dietary fat does matter for skin, and a dog on a very lean diet may benefit from more of it. Most complete dog foods already supply the fats a healthy coat needs. A dull coat, flaking or itching can point to allergies, parasites or thyroid trouble, so ask your vet before you treat it as a diet issue.

Compare

Olive oil vs fish oil for dogs: what is the difference?

Fish oil supplies EPA and DHA, and olive oil does not. That difference is why fish oil has joint evidence in dogs and olive oil does not (AAHA, Pain guidelines) (Roush et al., 2010).

Olive oil and fish oil side by side for a dog owner
PointOlive oilFish oil
Main fatMonounsaturatedOmega-3 (EPA, DHA)
Dog joint trialsNone foundSeveral, with benefit (Barbeau-Gregoire et al., 2022)
CaloriesAbout 9 per gramAbout 9 per gram
TasteMildFishy; some dogs refuse it

Read the full Mighty K9 vs fish oil comparison before you choose.

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Cautions

Can olive oil upset a dog's stomach?

Yes, in some dogs. Fats and oils can cause vomiting and diarrhea, and potentially pancreatitis in some pets (ASPCA, People foods).

Low-fat diets and pancreatitis

Dogs with pancreatitis need a low-fat ration, under 20 g of fat per 1,000 kcal (Merck Vet Manual, Pancreatitis). If your dog has had pancreatitis or eats a prescribed low-fat food, ask your vet before adding any oil.

Soft stool in the first days is the most common sign that a dog's gut is adjusting to extra fat.

Freshness

Can the olive oil in Mighty K9 go bad?

Yes. Like any oil, olive oil slowly goes rancid with heat, air and light. A rancid oil smells like crayons or old nuts.

  • Keep the cap tight after each use.
  • Store the bottle in a cool, dark cupboard.
  • Smell it now and then. Fresh oil smells mild and fruity.
  • Do not use oil that smells sharp or stale.

No expiry date shows on the label panel. Note the day you open each bottle. At 2 mL a day, one bottle is gone in 30 days, so freshness is rarely a problem.

Starting out

How do I add olive oil drops to my dog's food?

  1. Measure 2 mL

    Two full droppers. Do not pour by eye.

  2. Mix into wet food

    Oil coats kibble unevenly. A spoon of wet food or broth helps it blend.

  3. Trim a treat

    For small dogs, cut one small treat a day to balance the 16.2 kcal.

The serving size guide has more detail on measuring.

Profile

Olive oil in Mighty K9 at a glance

Organic extra virgin olive oil in Mighty K9: label facts next to research. Sources: (USDA, Olive oil) (Merck Vet Manual, Pancreatitis) (ASPCA, People foods)
Label nameExtra Virgin Olive Oil (organic, per the bottle front)
What it isOlea europaea · Plant oil, the carrier
Position on the label1 of 3 (Extra Virgin Olive Oil, ESS60, Bacon Flavor)
Amount per 2 mL servingNearly the whole 2 mL serving
What research has looked at884 kcal per 100 g; 0 g EPA or DHA (USDA)
Strength of evidenceFood ingredient; no dog joint trials
What it is sold forCarries the ESS60; the product page also mentions skin and coat
Main cautionAdds fat and 16.2 kcal per serving; extra fat can upset some dogs' stomachs.

FAQ

Olive oil for dogs FAQ

Is olive oil good for dogs' joints?

There is no good evidence that olive oil helps dog joints. It has no EPA or DHA, the omega-3 fats with joint research in dogs. Keeping your dog lean has much stronger support. Limping, trouble rising or stiffness that does not ease needs a vet exam.

How many calories are in Mighty K9?

Each 2 mL serving has 16.2 kcal, nearly all from olive oil. A whole 60 mL bottle holds about 486 kcal. For a 22 lb dog that is about 2.6% of a day's calories, and for a 7 lb toy dog about 6%.

Can olive oil give dogs diarrhea?

Yes, it can. Extra fat sometimes causes loose stool or vomiting, especially in dogs with sensitive stomachs. It can potentially trigger pancreatitis in some pets. Stop and call your vet if vomiting, belly pain or diarrhea does not settle within a day.

Is extra virgin olive oil better than regular olive oil for dogs?

Extra virgin oil is pressed without heat or chemicals and keeps more plant compounds. For a dog, both are mostly monounsaturated fat with the same calories. Neither has EPA or DHA. The bottle front says Mighty K9 uses organic extra virgin.

Can I give my dog olive oil from my kitchen instead?

You can, but kitchen olive oil has no ESS60, and Mighty K9 is sold for the ESS60. About 2 mL of plain olive oil gives similar fat and calories. Ask your vet first if your dog has a sensitive stomach or a low-fat diet.

Does Mighty K9 have omega-3?

No meaningful amount. Its oil is olive oil, which USDA lists at 0 g EPA and 0 g DHA. If your vet recommends omega-3 for your dog's joints, you would need a fish oil product or a joint diet that contains it.

Who wrote this

Written and reviewed by

Written byThe Mighty K9 editorial teamThemightyk9, the Mighty K9 U.S. shop

Plain-language pages built from the label panel, the sales page and linked veterinary and public sources.

Medically reviewed byDr. Aimee Duffy, MD, PhysicianRole: Medical reviewerReview date: October 12, 2026

Last updated . Both our editorial standards and how we check reviews are open to read. This website is run by Themightyk9, the Mighty K9 U.S. shop and a stocking partner, not by the manufacturer. Buying through our order links earns us money.

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