How To Take Cod Liver Oil


Brand Recommendations Updated 2019

Why and how to take cod liver oil

Most brands of cod liver oil go through a process that removes all of the natural vitamins. The resultant product contains very low levels of vitamin A and virtually no vitamin D. Some manufacturers add manufactured vitamins A and D to the purified cod liver oil and until recently, one manufacturer added the natural vitamins removed during processing back into the cod liver oil. Fortunately, we now have available in the U.S. a naturally produced, unheated, fermented high-vitamin cod liver oil that is made using a filtering process that retains the natural vitamins. The high-vitamin fermented cod liver oil is sold as a food so does not contain vitamin levels on the label. However, after numerous tests, the approximate values of A and D have been ascertained at 1900 IU vitamin A per mL and 390 IU vitamin D per mL. Thus 1 teaspoon of high-vitamin fermented cod liver oil contains 9500 IU vitamin A and 1950 IU vitamin D, a ratio of about 5:1. Based on these values, the dosage for the high-vitamin fermented cod liver oil is provided as follows:

  • Children age 3 months to 12 years: 1/2 teaspoon or 2.5 mL, providing 4650 IU vitamin A and 975 IU vitamin D.
  • Children over 12 years and adults: 1 teaspoon or 10 capsules, providing 9500 IU vitamin A and 1950 IU vitamin D.
  • Pregnant and nursing women: 2 teaspoons or 20 capsules, providing 19,000 IU vitamin A and 3900 IU vitamin D.

Cod Liver Oil For Covid

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
First Posted : October 30, 2020Last Update Posted : April 6, 2022

A randomized, parallel-group treatment, quadruple masked, two-arm study to assess the effectiveness of cod liver oil compared to placebo in the prevention of Covid-19 and airway infections in healthy adults.

In this study, the investigators will investigate whether daily cod liver oil can prevent Covid-19 infections and reduce the severity of such infections. The investigators will also examine whether cod liver oil prevents other airway infections in healthy adults.

Condition or disease
Dietary Supplement: Cod liver oilDietary Supplement: Corn oil Phase 4

Cod liver oil is a traditional source of vitamin A, D, and E and omega-3 fatty acids and the dose administered in the study will contain 250 ug vitamin A, 10 ug vitamin D, 10 mg vitamin E, and 1,2 g omega-3 fatty acids.

Layout table for study information

Study Type :
Parallel Assignment
Intervention Model Description: A parallel-group treatment, two-arm study where participants are randomly assigned to cod liver oil or placebo in a 1:1 ratio
Masking: Quadruple
Masking Description:

Where To Buy It

Cod liver oil is a pale yellow and translucent liquid with a fishy smell. Manufacturers often add fruit flavors and peppermint to make it more appealing. You can buy cod liver oil in most pharmacies and drugstores as well as online. Its manufactured in liquid forms, capsules, and kid-friendly chewable tablets. Check out the following products on Amazon for your kids:

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May Reduce Joint Pain And Improve Rheumatoid Arthritis Symptoms

Rheumatoid arthritis is an autoimmune disease thats characterized by damage to the joints.

There is currently no cure for rheumatoid arthritis, but studies suggest that cod liver oil may reduce joint pain and improve symptoms of rheumatoid arthritis like joint stiffness and swelling .

In one study, 43 people took a 1-gram capsule of cod liver oil daily for three months. They found it reduced symptoms of rheumatoid arthritis, such as morning stiffness, pain and swelling .

In another study in 58 individuals, researchers investigated if taking cod liver oil would reduce pain from rheumatoid arthritis enough to help patients reduce their use of anti-inflammatory medications.

It is believed that the omega-3 fatty acids in cod liver oil may help reduce inflammation in the joints and protect against damage .


Thanks to cod liver oils ability to reduce inflammation, it may help reduce joint pain in those who suffer from rheumatoid arthritis.

The Cod Liver Oil I Give My Family

Nourished and Nurtured: Q &  A About Cod Liver Oil

If you’re struggling to take cod liver oil , start with a good-tasting cod liver oil and you might find that you and your children don’t struggle with taking it. I work with Corganic, and have been taking their Extra Virgin Cod Liver Oil for some time. It’s pleasant, mild, fresh-tasting. It’s also minimally processed and sourced from sustainable fisheries. We take it straight off the spoon.

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Other Recommended Cod Liver Oil Brands

Amazon also have the Sonnes brand that sell their Old Fashioned Oil. This unflavored oil is one of the only cod liver oils available that is sourced without the use of chemicals or heat and left as close as possible to its natural state.

Another highly rated natural cod liver oil is Garden of Lifes Olde World Icelandic Oil in mint flavored liquid. There are many positive reviews for this cod liver oil and it is particularly high in omega-3s.

Have you found any other good places to buy cod liver oil online or any other good brands that youve tried? Id be interested to hear your opinion on what you think is the best cold liver oil to take.

What To Do If You Miss A Dose Of Cod Liver Oil

  • It is generally not harmful if you miss a dose of a multivitamin. Take it as soon as you remember. Do not take two doses at one time.

  • Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

  • Keep all medicine out of the reach of children.

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What International Studies Have Discovered

Lets look at the example of taking anti-reflux medication. The stomach typically produces two to three times more acid between 10:00 pm and 2:00 am than at any other point of the day. In addition, heartburn typically worsens while lying down, which intensifies uncomfortable side effects.

These factors could explain why one study found that 70% of people who took their anti-reflux medication later in the day experienced greater relief, compared to the 42% who took their medication in the morning.

It has also been well-documented that heart attacks and strokes occur more often in the early morning. This phenomenon could explain why a five-year study from Spain found that patients who took their blood pressure medicines at night had a 33% reduced risk of heart attack and strokes, compared to those who took their medications in the morning .

May Improve Bone Health

How to Best Swallow Cod Liver Oil

Its incredibly important to maintain healthy bones as you age.

This is because you start losing bone mass after age 30. This can lead to fractures later in life, especially in women after menopause .

Cod liver oil is a great dietary source of vitamin D and may reduce age-related bone loss. Thats because it helps your body absorb calcium, which is a necessary mineral for strong bones, from the gut .

In fact, studies show that when accompanied by a diet high in calcium, taking a vitamin D supplement like cod liver oil can reduce bone loss among adults and strengthen fragile bones in children .

Getting enough vitamin D from foods and supplements like cod liver oil is especially important for people who live far from the equator, a their skin doesnt get enough sunlight to synthesize vitamin D for up to six months of the year .


Cod liver oil is rich in vitamin D, which helps with maintaining strong and healthy bones. It is especially important for people who live far from the equator.

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The Ol Bait And Switch

Also, when you take cod liver oil, you might not actually be getting cod livers in your oil. Since the supplement industry isnt regulated in the U.S., you might not be getting what is advertised. Many brands may use less expensive sources for oil and even supplement with synthetic or natural vitamin A. So, buyer beware.

When To Take Cod Liver Oil

It is recommended that cod liver oil be consumed preferably in the morning, in the middle of a meal, always as a food supplement, i.e. in addition to a healthy and balanced diet. It can be found in liquid form, but the taste is bitter and does not keep well. It is therefore preferable to take it in capsule form, in pharmacies or food supplement shops. In this case, take one to two capsules per day maximum. The cod liver oil cure can last between three and six months. Before starting a new treatment, take a break of at least one week.

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Is Cod Liver Oil Safe For Everyone

The World Health Organisation recommends eating one or two portions of oily fish a week, equivalent to 200-500mg of EPA and DHA. Those with an allergy to fish or who follow a vegetarian or vegan diet should look to alternative plant-based sources of these essential fatty acids.

As a supplement, omega-3 fatty acid is generally regarded as safe for most people, when taken in low doses . If you are considering taking a new supplement, discuss this with your health practitioner first, especially if you are taking prescription medication.

Supplements provide a concentrated and often more convenient dose of omega-3 fatty acid for those who may not be able to sufficiently cover their needs through diet. With that said, it is always preferable to attain nutrition through food and choose supplements only when additional support is needed. Most cod liver oil capsules also contain vitamin D and A, so make sure that youre not taking any other supplements such as a multivitamin, or you may exceed the recommended amounts each day.

It should be noted that the NHS advises against taking cod liver oil during pregnancy because the high level of vitamin A may cause risk to the developing foetus. It is best to speak to your doctor about your options if you are pregnant or looking to conceive.

If you do decide to take a supplement, choose a product from a reputable company that tests its product for purity, because fish oils may contain contaminants such as mercury and dioxins.

What Does Cod Liver Capsule Do To The Body

Benefits of Fermented Cod Liver Oil How to Take it Without Gagging and ...

Cod liver oil is used to treat excessive cholesterol and high triglyceride levels, renal disease in diabetics, high blood pressure, heart disease, osteoarthritis, rheumatoid arthritis, depression, and systemic lupus erythematosus, an inflammatory illness . It may also be used during pregnancy to help prevent neural-tube defects such as spina bifida.

The benefits of supplementing with cod liver oil include reducing inflammation throughout the body, protecting the eyes from degenerative diseases such as macular degeneration and cataracts, aiding in weight loss by increasing metabolism, and providing essential nutrients that may be lacking in a diet. Although there are no known adverse effects of taking cod liver oil, it can cause some symptoms such as nausea, vomiting, diarrhea, constipation, stomach pain, bloating, indigestion, dry mouth, urinary frequency, and dark urine these symptoms are usually mild and go away on their own. Some people may also have a reaction to fish oils containing mercury or other contaminants. If you experience any symptoms after starting cod liver oil treatment, stop taking it and see your doctor immediately.

Cod liver oil contains vitamin A, D, E, and K, along with minerals such as calcium, phosphorus, iron, zinc, copper, and selenium. It also has large amounts of omega-3 fatty acids which help reduce inflammation and improve cardiovascular health.

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Adding Cod Liver Oil To Your Diet

It is fortunate that its fairly easy to add cod liver oil to your diet. It comes in many forms, but capsule and liquid forms are the most popular. Nothing has been said about how much you should take cod liver oil, but to safe, cod liver oil intake should be based on intake levels of vitamins A and D, and omega-3 fatty acids.

Most people take 1 to teaspoons of cod liver oil daily, but you may take up to one 1 tablespoon. Dont ever make the mistake of taking cod liver oil excessively, as excessive doses of vitamin A can be harmful.

Its important to note that cod liver oil should be taken in moderation because it also works as a blood thinner. Before anything else, get the advice of a medical professional if you take any medications for blood pressure.

Pregnant women should also refrain from taking cod liver oil, as high doses of vitamin A may harm the baby.

How Do You Hide The Taste Of Cod Liver Oil

This approach works well when topped with applesauce, yogurt, cottage cheese, ice cream, pudding, or mashed potatoes. Make sure the oil is thoroughly mixed in to the food before adding enough food to make sure the oil is not exposed.

Cod Liver Oil: The Pros And Cons

Taking fish liver oil on a daily basis provides a good source of Omega-3 fatty acids. You will need to select a high-quality product in order to avoid any unpleasant side effects. If there is any discomfort with your symptoms, it is best to consult with your doctor about the best course of action.

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Taking The Wrong Fish Oil Dose

One of the biggest benefits of liquid fish oil is that it provides an effective, easy-to-swallow omega-3 dose. For example: Depending on the composition and capsule brand, youd have to take a good 10 fish oil capsules every day to get as much EPA/DHA as youd get in one tablespoon of Omega Cure®!

Here at Omega3 Innovations, we strongly recommend that adults take 3 teaspoons of Omega Cure daily. Omega Cures good taste and smell make it easy to enjoy that daily dose straight or by adding it to yogurt or juice. Still, many people frequently under-serve themselves when taking their liquid gold.

Potential Health Benefits Of Cod Liver Oil

The Facts on Taking Cod Liver Oil

Consuming cod liver oil can provide you with a significant amount of essential vitamins and fatty acids. Supplementing with it may offer several potential health benefits:

Glaucoma Prevention and Treatment

Glaucoma is a leading cause of blindness. The vitamin A found in cod liver oil prevents cellular damage from oxidation, which contributes to the development of glaucoma. Vitamin A also prevents deterioration of eye structure.

The omega-3s in cod liver oil offer even more significant effects. Fatty acids like DHA and EPA lower pressure and increase blood circulation in the eye, which helps stall the progression of glaucoma.

Anti-Cancer Properties

Because cod liver oil contains both vitamin A and omega-3 fatty acids, itâs a powerful weapon in fighting cancer. It not only displays anti-inflammatory properties, which help prevent cancer cell development, but it could also be used to treat cancer.

Cancerous tumors need to create new blood vessels to grow, a process called angiogenesis. Cod liver oil prevents angiogenesis and disrupts cancer cell reproduction, interfering with tumor growth.

Rheumatoid Arthritis Management

The anti-inflammatory effects of cod liver oil have been shown to help people with rheumatoid arthritis cope with joint pain. A 24-week study found that people who supplemented with cod liver oil reported lower pain scores. There was also a marked decrease in painkiller doses needed to manage pain.

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Nutrients In Cod Liver Oil

  • Omega-3 fatty acids. Fish, including cod, is one of the major food sources of the important omega-3 fatty acids EPA and DHA. Consuming these healthy fatty acids is associated with reduced risk for conditions like high blood pressure, cognitive decline, and stroke. Cod liver oil is an excellent source of both EPA and DHA.
  • Vitamin D. Unlike plain old fish oil, cod liver oil is also a rich source of vitamin D. Vitamin D is essential for good health, and most of us dont get enough of it. Vitamin D is good for your bones, heart, brain, and more, helping to prevent things like osteoporosis, dementia, and cardiovascular disease.
  • Vitamin A. Cod liver oil also contains vitamin A. While vitamin A is important for your health , too much vitamin A can be detrimental. Read more below to learn why excessive levels of vitamin A in cod liver oil can be dangerous.

Where Is The High Vitamin Cod Liver Oil

As with many things in the 21st century, large market demands, love affairs with laboratories and environmental changes have resulted in “modernized treatments” of cod liver oil. While cod liver oil benefits are undeniable and age-old, the refined processing of cod liver oil now-a-days has made it far different from the sacred spoonfuls our grandparents slurped down. In interviews conducted with major mills and industry experts across Norway and Iceland and elsewhere, we discovered this unfortunate truth to be all too true: most oils go through an extensive processing that destroys natural nutrients and renders them essentially impotent. This is partly due to the fact that small-batch old fashioned production is logistically complex and not lucrative, and also that treatment methods to remove the contamination of PCBs and mercury now found in our seas also remove most of the naturally occurring vitamins A & D. Not to mention, the average demand for expensive, “yucky tasting” stuff is low when sugar encrusted vitamin chewies are now lining the shelves. While many of these processed liver oil products are re-infused with synthetic vitamins, these products lack the natural, synergistic balance that traditionally made this superfood so vitally powerful.

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