A rich source Omega 3 fatty acids, fish oil supplements are widely used to support joint health, reduce inflammation, support brain function and prevent heart disease.

But how do you know you're getting quality? In this article we share some of the best fish oil Australia has to offer, and how to incorporate them into your daily routine.

What are the Benefits of Fish Oil?

Fish oil is packed full of essential fatty acids - Omega 3's - that your body can't produce on its own. You need to get these nutrients from food sources.

Unfortunately,

Western diets have become high in saturated fats, sugars and refined foods pushing out many key nutrients including Omega 3's.

The best way to boost your omega 3 levels is by eating oily fish thats low in mercury a few times a week. For some of us, that's easier said than done. But luckily, taking fish oil supplements can help fill nutritional gaps.

The top benefits of fish oil:

1. Supports Cognitive Function

   DHA and EPA is often used in the treatment of conditions including ADHD, depression and memory decline. Research is being conducted into the possible benefits of fish oil supplementation on Parkinson's Disease, dementia and PTSD. Clinical trials have shown statistically significant benefits of fish oil supplements for those predisposed to Alzeimer's Disease [4].

2. Anti inflammatory

   Fish oil has anti inflammatory properties and can be used to treat conditions such as joint inflammation and rheumatoid arthritis [2].

3. Protects Heart Health

   Omega 3 helps manage cholesterol, glyceride levels and blood pressure [3]. Adequate Omega 3 intake is linked to better cardiovascular function in otherwise healthy adults [3].

4. May Support Eye Health

   Some studies suggest higher omega 3 intake may be linked to a lower risk of age-related vision loss and improved retinal function [3].

5. Supports Healthy Fetal Development

   Health practitioners often recommend fish oil supplements during pregnancy to support healthy fetal brain and eye development [3]. Always check with your GP before beginning a supplement regime during pregnancy.

   See even more benefits of fish oil in this video.

    

Best Fish Oil Supplements in Australia for 2025

Click here to view all Fish Oil / Omega 3 Supplements

How Much Fish Oil Should You Take Per Day?

The exact dosage amount will vary depending on the type of fish oil you take and the potency of the product. A standard recommended dosage may be between 2-6 capsules, or 1-2 teaspoons of oil per day. High strength fish oil supplements typically come with a lower recommended dosage. Check the dosage recommendations on the product packaging.

• 1,000mg of fish oil concentrate typically provides around 300mg of combined EPA and DHA

• The recommended daily intake of total omega 3 is 1100mg for women and 1600mg for men

• Up to 3,000mg of fish oil per day is considered safe for healthy adults [1]

What Time of the Day Should You Take Fish Oil?

It's recommended to take your fish oil capsules or liquid fish oil in the morning with a meal that contains fat to aid in proper absorption. Fish oil supplements can have a strong aftertaste; laying down for the night straight after taking fish oil may encourage unpleasant reflux symptoms.

Are all Fish Oil Supplements the Same?

Not all products are created equally!

Fish oil supplements can contain different ratios of DHA/EPA depending on the source, quality and manufacturer, meaning they will boast different health benefits [5].

Let's break it down:

There are 3 types of Omega 3:

1. Alpha-linolenic acid (ALA)

2. Eicosapentaenoic acid (EPA)

3. Docosahexaenoic acid (DHA) 

ALA is found in some seeds, nuts, vegetable oils and some vegetables. It is an inactive form of omega 3, and is converted to an active form within your body.

EPA and DHA are more bioavailable forms of omega 3 and are found in fatty fish, seafood and some forms of algae.

In other words, EPA and DHA types give your body more bang for its buck.

You also want to make sure that your fish oil supplements:

• Are free from contaminants like mercury

• Are sustainably sourced and certified by an organisation such as Friend of the Sea

• Are manufactured without oxygen, excessive heat or chemicals

Can You Take Fish Oil With Other Supplements?

Fish oil is generally considered safe to take with other supplements, but there are a few considerations. Fish oil is often taken with fat-soluble vitamins such as vitamin A, D, E and K, though taking too much of these vitamins can lead to toxicity. Check your supplements to ensure you're staying within the dosage recommendations.

Fish oil supplements can have a mild blood thinning effect. If you are taking anti coagulants such as warfarin or supplements with similar effects such as gingko, consult your GP prior to use.

Does Fish Oil Have Any Side Effects?

Possible side effects of fish oil supplements include [1]:

• Blood thinning

• Heartburn

• Gastro intestinal discomfort

Summary

Omega 3 supplements help to support healthy brain and heart function, reduce inflammation and overall wellbeing. Fish oil supplements contain EPA and DHA types of omega 3, which is more bioavailable than AHA omega 3 from plant food sources.

Fitting a fish oil supplement into your daily routine is simple; whether you opt for liquid oil or capsules, it's best to take your fish oil in the morning with a meal containing fat for optimal digestion.

References

[1] WebMD, 2025. Fish Oil: Uses, Side Effects and More. webmd.com/vitamins/ai/ingredientmono-993/fish-oil

[2] Arthritis Australia, (ND). Fish Oils. arthritisaustralia.com.au/managing-arthritis

[3] Medical News Today, 2023. Can Fish Oils and Omega 3 Oils Benefit Our Health? https://www.medicalnewstoday.com/articles/40253#_noHeaderPrefixedContent

[4] Oregon Health and Science University, 2024. Study Examines Effects of Fish Oil on Older Adults' Brains. https://news.ohsu.edu/2024/08/01/study-examines-effect-of-fish-oil-in-older-adults-brains

[5] Science Direct, 2024. Advances in Therapeutic Applications of Fish Oil: A Review. https://www.sciencedirect.com/science/article/pii/S2772275924000091