Fish Oil: Benefits, Side Effects, And More

Medically reviewed by Maria Sarino, MD FACT CHECKED

There are a lot of supplements available that make the claim to be the greatest and offer the most significant advantages.

Finding the best super-vitamins for your regular regimen may be difficult with so many options available. Fish oil benefits could be available in supplements and some foods, so they may be worth looking into if you want to improve your health.

Omega-3 acids are abundant in fatty fish, such as mackerel, anchovies, black cod, salmon, herring, sardines, whitefish, bluefin tuna, cobia, and striped bass.

However, taking fish oil supplements could help you obtain enough omega-3s if you do not often eat two servings of these types of fatty fish every week.

All fish oils, however, are not made equal. Nutritionists advise searching for a company that is accurate in labeling, open about the source of origin, and produced from sustainable fisheries when you are ready to buy a fish oil supplement.

In this article, we will be looking at all about fish oil.

Fish contains the omega-3 fatty acids docosahexaenoic and eicosapentaenoic. These are found in fish, phytoplankton, and fish products.

Omega-3, a necessary lipid found in the human body, is best found in fish oil. As a result, it offers numerous health advantages.

These acids are essential for carrying out a number of bodily processes. For instance, they assist in enhancing metabolic signaling, brain function, and inflammatory response.

Fish itself is the best source of fish oil. However, you may take supplements of fish oil that contain EPA and DHA. Salmon, trout, albacore, sardines, shrimp, halibut, clams, herring, cot, cod, and light chunk tuna are foods high in EPA and DHA omega-3 fatty acids.

A different type of omega-3 acid is ALA. Vegetarian food like spinach, walnuts, and flaxseed oil are good sources of it.

Benefits Of Fish Oil

  1. Good For Weight Loss

    Although eating healthfully and exercising regularly are the two most important ways to lose weight, adding fish oil to your diet may help speed up the process.

    Fish oil consumption reduces appetite, which lowers body fat accumulation and increases the effectiveness of exercise.

  1. Might Help To Prevent Cancer

    Fish oil has many health advantages, one of which is cancer prevention. It is rich in omega-3 fatty acids like docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), minerals, vitamins, proteins, and other crucial nutrients.

    Omega 3 helps keep healthy cells from turning into malignant tumors and preventing unintended cell proliferation.

  1. Could Help In Mood Upliftment

    Serotonin is a neurotransmitter released by the brain that regulates mood and cognition. Regular fish oil ingestion encourages serotonin release.

    Thus, continuous serotonin release aids in enhancing social behavior and mood elevation. As a result, frequent fish oil consumption improves serotonin function by lowering brain inflammation and promoting serotonin release.

    Therefore, it will aid in elevating mood, social behavior, and general contentment. Enhancing brain function also facilitates quicker cognition and decision-making.

  1. Aids In Treating Mental Problems

    Regular fish oil consumption lowers the chance of developing depression. Additionally, it lessens aggressiveness.

    Fish oil contains omega-3 fatty acids, which help the brain operate properly and prepare it to handle a variety of mental issues.

    Fish oil helps the brain’s cognitive functions, including memory, concentration, and cognitive functioning. Alzheimer’s disease may also be cured with it.

  1. May Help In Pregnancy

    For the baby’s brain and eyes to grow and develop properly during pregnancy, the DHA found in fish oil is crucial.

    Our skin, brain, and retina are primarily made of DHA. Consequently, it is essential for the baby’s healthy development while in the womb.

  1. Could Decrease High Blood Pressure

    Fish oil, which is high in omega-3 fatty acids, helps lower blood pressure. The omega 3 acids’ DHA (Docosahexaenoic Acid) and EPA (Eicosapentaenoic Acid) are crucial for the expansion of blood arteries.

    They lower the pressure and allow for easy blood flow via the arteries. Additionally, omega-3 fatty acids have anticoagulant and anti-inflammatory effects, which help to prevent hypertension.

Side Effects Of Fish Oil

  1. Allergic Responses

    Contrary to popular belief, it is uncommon for those who are allergic to fish or shellfish to also be allergic to pure fish oil.

    However, you might want to think about switching to algal or flaxseed oil if you have allergies to fish or shellfish. Additionally, you could speak with your healthcare professional about the hazards.

  1. Could Enhance Bleeding

    Fish oil, as we all know, decreases platelet aggregation. In smaller doses, it might be advantageous. However, when taken in higher amounts, it affects platelet activity and results in bleeding.

    It justifies using fish oil in the prescribed amounts. It is also a good idea to discuss supplement usage and dosage with your doctor. Prior to any procedure, be sure to disclose fish oil use.

  1. Gastrointenstinal Discomfort

    Fish oil might upset your digestive system because it is a concentrated source of fat, especially if you consume it on an empty stomach.

    One frequent side effect of using fish oil is general gastrointestinal pain, including nausea. To see whether it helps, try taking the supplement with food or less frequently or in larger doses.

  1. Bad Smell Breath

    Even fish enthusiasts occasionally find it challenging to swallow the flavor of fish oil pills.

    Vitamin burps may occur with other supplements besides fish oil and are a sign that whatever you took is disintegrating before it enters your digestive system.

    Although most of this is anecdotal, many people who take fish oil report fishy breath, belching, and foul-smelling sweat.

    The fishy odor of your supplements could be muted or lessened by placing them in the refrigerator, but it is possible that the scent will still sweat out after a workout.

  1. Reduced Immunity Levels

    Omega-3 fatty acids are excellent anti-inflammatory substances. They influence different immune cells and reduce their effects. It has been used to treat many autoimmune diseases.

    However, people who consume large amounts of omega-3 fatty acids over extended periods of time will experience a weakened immune system, leaving them more vulnerable to infections.

  1. Bad Smelling Sweat

    People have reported that taking fish oil may make their perspiration smell. This adverse effect might annoy you if you exercise frequently or perspire frequently.

    If you take a fish oil supplement during an exercise, you might want to try scheduling it differently or cutting back on the dosage to see if it helps.

Fish Oil Dosage

The amount of fish oil to take depends on the purpose of the supplement. The recommended daily consumption of fish is 300 mg of combined EPA and DHA for overall health. One gram per day is generally advised.

These figures represent the sum of the two distinct fatty acids that make up fish oil. The recommended sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are a combination of whole foods and supplements.

The less supplementation is necessary, the more EPA and DHA are delivered by the food. You may consume fish oil at any time of the day.

Take fish oil with meals to lessen the fish burp flavor. If there is no risk of increased mercury levels, pregnant women should increase their daily DHA consumption by at least 350 mg.


When beneficial foods are consumed in excess, harmful outcomes might also occur. As is often said, nothing is good in excess. A fantastic dietary supplement is fish oil. It is abundant in essential minerals and vitamins.

Numerous health advantages exist. However, taking them in greater amounts may result in a number of negative effects, including increased bleeding, lowered immunity, a high risk of hypercholesterolemia, atrial fibrillation, and digestive issues, to mention a few.

If you recently started taking a fish oil supplement, you may notice that you experience a few moderate but bothersome side effects, like fishy-smelling breath and sweat.

You might try cutting back on your intake if these side effects are troublesome, or you could try taking them with meals. Even taking them at various times throughout the day may be beneficial at times.

Additionally, if your side effects are troublesome or worsen, make sure to consult a healthcare professional. They could assist you in deciding whether consuming fish oil is the best option for you.

Leave a Reply

Your email address will not be published. Required fields are marked *