1 teaspoon (medium) of Fish Oil Supplement (5 g) has 45 calories. That works out to 900 calories per 100 g. It contains 0 g of carbs, 0 g of protein, 5 g of fat and 0 g of fiber. Its glycemic index is 0 (low), so it raises blood sugar slowly.

What is Fish Oil Supplement?

Fish Oil Supplement is oil derived from fish, commonly sold in softgel capsules and sometimes as a liquid. The capsules are easy to swallow with water, while liquid versions can be taken as directed on the pack. It is used as a convenient way to include fish oil without serving a portion of fish.

Its nutritional profile is almost entirely fat, and it contains omega-3. You can take it with a meal if that makes the taste easier to manage. Serving size and directions vary by product, so follow the label rather than assuming that one form or amount suits everyone.

Fish Oil Supplement Nutrition Facts

Selected: 100 g

900

KCAL / 100G

Carbs

· 0% DV

Protein

· 0% DV

Fat

100g

· 128% DV

Fiber

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 0% · Protein 0% · Fat 100%

Fish Oil Supplement Vitamins & Minerals

Vitamins

Vitamin D

10µg · 50% DV

Vitamin E

2mg · 13% DV

Vitamin A

30µg · 3% DV

0mg · 0% DV

Minerals

Iodine

10µg · 7% DV

Selenium

2µg · 4% DV

Calcium

2mg · 0% DV

Iron

0mg · 0% DV

How Nutritious Is Fish Oil Supplement?

Nutrient density

High

60/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Low

0/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Fish Oil Supplement Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Fish Oil Supplement

To burn the 900 calories in 100 g:

🚶

223min

Walking (5 km/h)

🏃

92min

Running (8 km/h)

🚴

122min

Cycling

🏊

105min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Fish Oil Supplement Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Fish Oil Supplement Contain Allergens?

Contains these allergens:

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish yes

Soy free

Sesame free

Which Diets Is Fish Oil Supplement Good For?

Vegan

— Not suitable

Vegetarian

— Not suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Fish Oil Supplement Fat Profile

SATURATED

21g

MONOUNSATURATED

47g

POLYUNSATURATED

32g

⚖️

Omega 6:3 ratio 0.1:1

Below the ideal 4:1 — a good omega balance.

Compare Fish Oil Supplement

🟡vs🧈

Fish Oil Supplement vs Butter183 kcal more per 100 g

→🟡vs🫒

Fish Oil Supplement vs Olive oil16 kcal more per 100 g

→🟡vs💊

Fish Oil Supplement vs Fish Oil CapsuleSame calories per 100 g

→🟡vs🥥

Fish Oil Supplement vs Coconut oil38 kcal more per 100 g

→

Foods Similar to Fish Oil Supplement

🧈

Butter

717 kcal

🫒

Olive oil

884 kcal

💊

Fish Oil Capsule

900 kcal

🥥

Coconut oil

862 kcal

🥥

Coconut milk

230 kcal

🌻🛢️

Sunflower Oil

884 kcal

🛢️

Oil

884 kcal

🛢️

MCT Oil

860 kcal

Frequently Asked Questions About Fish Oil Supplement

What does a fish oil supplement do for heart health?

A fish oil supplement provides the omega-3 fats EPA and DHA, which can help lower high triglyceride levels. It is not a proven substitute for prescribed heart treatment, and taking it does not guarantee prevention of heart disease.

How much fish oil supplement should you take a day?

There is no single daily amount that suits every fish oil supplement, because products contain different amounts of EPA and DHA. Follow the product directions and avoid taking more than advised without guidance from a healthcare professional.

Is a fish oil supplement the same as omega-3?

No. A fish oil supplement is one source of omega-3 fats, usually EPA and DHA; omega-3 is a broader group that also includes fats found in foods such as flaxseed and chia.

Should you take a fish oil supplement in the morning or at night?

Either morning or night is suitable for a fish oil supplement. Taking it consistently with a meal matters more than the time of day and may make it easier to tolerate.

What are the side effects of a fish oil supplement?

Common side effects of a fish oil supplement include fishy burps, nausea, indigestion, and loose stools. Taking it with food may help; stop using it if you develop a severe or unusual reaction.

Can a fish oil supplement lower triglycerides?

Yes, EPA and DHA in a fish oil supplement can lower elevated triglycerides, particularly when used in amounts recommended for that purpose. A standard supplement is not a replacement for prescribed treatment or a clinician’s advice.

Can you take a fish oil supplement while pregnant?

A fish oil supplement may be used during pregnancy, but product contents and appropriate amounts vary. Ask your prenatal care provider before taking one, and do not substitute cod liver oil without checking its vitamin A content.

Does a fish oil supplement need to be refrigerated?

Not always; storage requirements vary by product. Keep a fish oil supplement tightly closed and away from heat and light, and refrigerate it only if the label says to do so.

How can you tell if a fish oil supplement has gone rancid?

A strongly sour, paint-like, or unusually rancid smell can signal that a fish oil supplement has oxidized. Do not use capsules that smell or taste markedly off, and discard products that are past their expiry date.

What is the difference between a fish oil supplement and cod liver oil?

A fish oil supplement is usually made from fish body tissue, while cod liver oil comes from cod liver. Cod liver oil also supplies vitamins A and D, so taking it alongside other supplements can add up to excessive amounts.

Have another question about Fish Oil Supplement?

Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.

Scan calories with your camera

Instant AI nutrition analysis

Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026