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Updated On Apr 2025
Health BenefitsMicro NutrientsNutritional Value
Updated On Apr 2025

Want To Lose Weight Try Adding Fish Oil To Your Diet

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fish oil for weight loss

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Varleen Kaur

Varleen Kaur is a Qualified Dietitian. In Fitelo, she is currently serving as a Subject Matter Expert, in the Department of Performance and Marketing.

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“Ever wondered how some people manage to shed those extra kilos effortlessly? Imagine asking someone how they got so fit, and they reply, Oh, I just started using fish oil for weight loss!’ Sounds unusual, right? Most of us think about intense workouts or strict diets when it comes to losing weight. 

But here’s the surprise: fish oil might be the secret weapon you didn’t know you needed! Studies show that omega-3 fatty acids found in fish oil may help in fat burning, improving metabolism, and even reducing belly fat. 

In this blog, I’ll explain how adding fish oil for weight loss can be an easy and effective option for your weight loss journey.

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What Is Fish Oil?

Fish oil is derived from fatty fish and is loaded with polyunsaturated fatty acids like omega-3 and omega-6. 

According to the studies, fish oil or eating fish help reduce mortality from coronary heart diseases.

However, fish oil is available in tablet or capsule form and it is important to consult a doctor or an expert dietitian before you consume them.  

Sources Of Fish Oil

SourceOmega-3 ContentOther NutrientsBenefits
Mackerel4,580 mg per 100gVitamin D, Vitamin B12, ProteinRich in omega-3 and essential vitamins
Sardines2,205 mg per 100gCalcium, Vitamin D, ProteinSupports heart health, and strong bones
Salmon2,150 mg per 100gProtein, Vitamin D, SeleniumBoosts brain function, and heart health
Anchovies2,000 mg per 100gVitamin A, Calcium, ProteinGreat for heart and liver health, easy to add to meals
Herring1,700 mg per 100gVitamin D, SeleniumSupports cognitive function, mood stabilization
Tuna1,400 mg per 100gProtein, Vitamin D, SeleniumGood for skin health and muscle repair

How Does Fish Oil Help In Weight Loss?

There is a connection between fish oil and weight loss. This is because the consumption of fish oil as a supplement or in fatty fish helps you lose weight and get lean and trim. 

So let’s explore the reasons why fish oil is good for weight loss.

1. Fish Oil May Reduce Appetite 

Fish oil is used for weight loss because it contains Omega-3 fatty acids that aid in weight loss by decreasing hunger and appetite because it regulates appetite.

This impact, however, may be beneficial for those on a weight loss journey which can occasionally enhance sensations of hunger.

As per the study, those who consumed fish oil felt fuller for up to two hours after a meal. 

2. Fish Oil Boosts the Metabolism

Consuming fish oil, aids in weight loss as it helps increase your metabolism.

Your metabolic rate, therefore, determines how many calories you burn each day, and can be used to calculate your metabolism. 

According to a small study, consuming 6 grams of fish oil daily for 12 weeks increased the metabolic rate of healthy young individuals roughly by 3.8%. 

3. Enhance The Benefits Of Exercise

Consuming fish oil also increases the calories and fat you burn when working out. The metabolic benefits of fish oil, however, extend beyond only raising daily caloric expenditure. 

According to research, It enables you to transition from using carbohydrates to fat as a fuel source during exercise.

4. You May Lose Fat and Inches With Fish Oil

Omega-3 fatty acids in fish help build muscle and reduce body fat, even if they don’t help them lose weight. 

As a fact, on the scale, your weight may not always be accurate but it can stay the same even if you’re growing muscle and decreasing fat.

While fish oil may help you lose more fat or inches without actually lowering your weight on the scale.

5. Fish Oil Lowers Triglyceride levels

The triglyceride levels go up when you consume a lot of unhealthy food and don’t work out. This further, increases the risk of obesity and diseases like heart disease, diabetes, atherosclerosis, etc.

6. Fish Oil Lowers LDL Cholesterol

Obesity may lead to higher levels of LDL cholesterol and lower levels of HDL or good cholesterol in the blood. According to the study, supplementation with fish oil decreased LDL cholesterol levels.

While, in other studies, consuming moderate amounts of fish oil that is 6g/day increased HDL.

7. Prevents Insulin Resistance

If your sugar levels are constantly high then your body can become insulin resistant. Insulin, however, becomes insensitive to glucose and doesn’t take it up and further, making you feel hungry as your cells are devoid of glucose. As a result, you tend to gain weight as you eat more.

According to the research, short-term supplementation with fish oil can help increase insulin sensitivity in people with metabolic disorders.

8. Reduce Inflammation

Stress in the body can also make you gain weight and as per the studies, fish oil is one of the anti-inflammatory foods. This is because it helps reduce inflammation in the body by inhibiting the inflammatory pathways.

How To Use Fish Oil For Weight Loss?

How To Use Fish Oil For Weight Loss?
  • Recommended Dosage: For Indian readers, the recommended daily intake of fish oil is around 1,000–2,000 mg of omega-3 fatty acids. Non-vegetarians can opt for fish oil capsules, while vegetarians can consider plant-based omega-3 supplements like flaxseed or algae oil. Always consult a doctor before starting supplements.
  • Timing: Timing matters. Morning intake works best for boosting metabolism throughout the day, while taking it at night can support muscle recovery and fat breakdown during sleep. Choose what aligns with your routine for consistent results.
  • Pairing Fish Oil: Complement fish oil with a balanced Indian diet. Non-vegetarians can include grilled fish, eggs, and greens, while vegetarians can opt for lentils, spinach, and paneer. Pair it with whole grains like quinoa or millet.
  • Combine with Physical Activity: For optimal results, combine fish oil with regular exercise. Moderate walking, yoga, or strength training enhances fat-burning effects.
  • Stay Hydrated: Fish oil can work better when your body is well-hydrated. Aim for 8-10 glasses of water daily to improve metabolism.
  • Monitor Your Progress: Track your weight loss journey and adjust the dosage or dietary habits as needed. Small, consistent steps lead to sustainable results.

Points To Remember While Buying Fish Oil For Weight Loss

So, below are a few points that you need to remember while you buy fish oil supplements from the market. These will also, help you buy the best fish oil for weight loss.

  • You must check the EPA and DHA ratio of the fish oil supplement. It should, however,  provide 500 mg of combined EPA and DHA.
  • According to WHO, you should consume fish oil that contains 0.2-0.5 grams of EPA/DHA.
  • Always make sure to choose a well-known and reputable brand that has undergone third-party testing.
  • Check if there are any added substances as they may be toxic for you.
  • Be particular about the type of fish oil you are using as some fish oil, like cod liver oil, is rich in vitamins A and D. The toxicity of these fat-soluble vitamins should be fatal for you, and always buy a fish oil supplement that your doctor has prescribed.

Fishes You Should Eat For Omega 3

  • Wild salmon
  • Mackerel
  • Herring
  • Tuna
  • Pacific cod
  • Hilsa

Myths And Misconceptions About Fish Oil For Weight Loss

  • Does Fish Oil Make You Gain Weight?

One common misconception is that fish oil causes weight gain because it contains fat. In reality, the omega-3 fatty acids in fish oil improve fat metabolism, helping your body use fat as energy rather than storing it.

  • Is Fish Oil Only for Non-Vegetarians?

While fish oil is derived from fish, vegetarians can benefit from plant-based omega-3 supplements like flaxseed or algae oil, which offer similar benefits.

  • Can Fish Oil Replace Exercise?

Some believe fish oil alone can help them lose weight. While it supports fat burning and improves metabolism, pairing it with regular exercise is essential for effective results.

  • Is More Fish Oil Better?

Overconsuming fish oil won’t speed up weight loss. Excessive intake can lead to side effects like nausea or digestive discomfort. Stick to recommended doses.

  • Is Fish Oil Effective Without a Healthy Diet?

Fish oil isn’t a magic pill. Its benefits are best realized when combined with a balanced diet rich in whole grains, lean proteins, and vegetables.

  • Does Fish Oil Only Target Belly Fat?

Fish oil improves overall fat metabolism, not just belly fat. However, studies show it’s particularly effective in reducing visceral fat around the abdomen.

Potential Side Effects And Precautions

  • Who Should Avoid Fish Oil?

While fish oil can be beneficial for many, certain individuals should avoid it. Those with seafood allergies or sensitivities should stay away from fish oil supplements. 

  • Common Side Effects Of Fish Oil

Some common side effects include fishy aftertaste, upset stomach, and diarrhea. These usually occur when the body isn’t accustomed to fish oil or when taken in excessive amounts.

  • How To Minimize Fish Oil Side Effects?

To minimize side effects, start with a smaller dose and gradually increase it. Taking the supplement with meals can also help reduce gastrointestinal discomfort.

  • Fish Oil And Heart Health Risks

Although fish oil is known for its heart-health benefits, excessive consumption can potentially raise cholesterol levels in some individuals.

  • Fish Oil And Blood Pressure

In rare cases, fish oil may lower blood pressure too much, leading to dizziness or fainting, especially for those already on blood pressure medication.

  • Interactions With Medications

Fish oil can interact with certain medications, including blood pressure, blood thinners, and immune-suppressing drugs. Always consult with your doctor before starting supplementation.

  • Recommended Dosage

Taking fish oil in moderation is key. The recommended dosage usually ranges from 1,000 to 3,000 mg per day, depending on individual health needs.

Summary On Fish For Weight Loss

Fish oil contains Omega 3 fatty acids in abundance which are essential for your body as nutrients and various functions. 

  • What Is Fish Oil?
    Fish oil is a supplement derived from fatty fish, rich in Omega-3 fatty acids, essential for overall health and weight management.
  • Sources Of Fish Oil
    It can be sourced from fish like salmon, mackerel, and sardines, or from fish oil supplements.
  • How Does Fish Oil Help In Weight Loss?
    Fish oil aids weight loss by boosting metabolism, reducing inflammation, and enhancing fat-burning processes in the body.
  • How To Use Fish Oil For Weight Loss?
    Consume 1-3 grams of fish oil daily with meals for optimal results. Always consult a doctor for specific dosages.
  • Points To Remember
    Choose high-quality fish oil with a high EPA and DHA content. Ensure it’s free from contaminants like mercury.
  • Fishes You Should Eat For Omega 3
    Salmon, mackerel, and sardines are top fish sources of Omega-3 fatty acids, supporting weight loss and heart health.
  • Myths And Misconceptions
    Fish oil alone won’t result in significant weight loss. It must be combined with a healthy diet and exercise for effective results.
  • Potential Side Effects And Precautions
    Side effects can include digestive discomfort or blood thinning. Always take fish oil with food and consult a doctor before starting.

Also, fatty fish and salmon are excellent sources of omega-3 fatty acids, which help fight obesity and give skin a healthy glow.

Fun Fact

It is not about the generation getting modern, it is also, about the people changing with the times. Probably this is the reason they forget the importance of things that are old and consume the new version of them.

Similarly, in the case of chai. People nowadays are using tea bags thinking they are better for weight loss and easy to make while ignoring the loose tea which in actual is healthier.

Click here, to know more!

Frequently Asked Questions

Does Fish Oil Help With Weight Loss?

Yes, fish oil can aid weight loss by boosting metabolism, reducing appetite, and helping burn fat, especially around the belly. It works best when combined with a healthy diet and exercise.

Will I Get Fat Eating Fish Oil?

No, fish oil won’t make you fat. It contains healthy fats (omega-3), which can actually improve fat metabolism and help reduce body fat when taken in recommended amounts.

What Is The Best Supplement For Weight Loss?

The best supplement varies for each person, but common ones include fish oil (for metabolism), green tea extract (for fat burning), and fiber supplements (for appetite control). Always consult a doctor.

Is Omega-3,6,9 Good For Weight Loss?

Yes, omega-3,6,9 can support weight loss by improving fat metabolism, reducing inflammation, and balancing hormones. Omega-3s, in particular, have been shown to help burn belly fat effectively.

Is Fish Oil For Weight Loss Good?

Yes, fish oil helps in losing weight because it increases metabolism and reduces your appetite.

Weight Loss Transformation

Losing weight is not easy. It can, however, be challenging and annoy you especially if the weight gets stuck.

So, what would you do in this situation?

Well, we would advise you to stay calm, confident, motivated, and determined, and most importantly, not stop working towards your fitness goals.

However, we have a weight loss success story to share with you today.

This will not only inspire you but will surely prove that nothing is impossible.

So, here we go!

https://fitelo.co/success-stories/palaks-weight-loss-transformation// CTA ImageCTA Image

Contact Us Today

We’re never leaving you hanging with doubts, queries, as well as confusing questions. We understand how all this information gets overwhelming as well as a little confusing on your way to a healthy lifestyle. Hence, you can always contact us at any time as our experts are here to guide you 24/7. Also, we will help you achieve your weight loss goals.

Disclaimer

This blog post was written to help you to make healthy and better food choices altogether. So, be aware and take care. The important thing to consider is your health before starting a restrictive diet. Always seek advice from a doctor/dietitian before starting if you have any concerns.

Eat Healthy, Live Healthy as well as Enjoy a long happy life

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