You've probably heard about "shark oil" from your grandmother or grandfather. They say it's good for knee pain and body aches, right? Cod liver oil is also a good thing. But this one is even more special. So, what exactly is cod liver oil? Today, we'll talk about the benefits it brings to our bodies and what we need to be careful about.
What is Cod Liver Oil?
Simply put, this is an oil obtained from the liver of a fish called "Cod". This oil is obtained especially from cod fish that live in the Atlantic Ocean. If we look at history, people in cold, northern European countries with little sunlight have used this oil to prevent vitamin D deficiency during the winter. It has been used since that time to prevent rickets, a bone disease that occurs in young children due to vitamin D deficiency.
Countries like Norway and Iceland are famous for producing these. Today, they can be purchased in capsule form at any supermarket or pharmacy. Many people use them for joint pain and to prevent heart disease.
What are the main nutrients in cod liver oil?
Cod liver oil is a valuable source of nutrients, rich in vitamin A, vitamin D, and omega-3 fatty acids . Let's take a look at its nutritional information.
| Nutrition | The amount contained in a teaspoon (about 5ml) |
|---|---|
| Calories | ~41 |
| Fat | ~4.5 grams |
| Vitamin A | About 90% of the daily requirement |
| Vitamin D | About 113% of the daily requirement |
| Omega-3 fatty acids | Contains a high amount |
The importance of vitamin A
Vitamin A is an essential nutrient for our immune system function , cell growth, good eyesight , and reproductive health.
The special feature of vitamin D
The main reason why cod liver oil is different from other fish oils is that it contains a lot of vitamin D. Did you know, scientists have estimated that over a billion people in the world are vitamin D deficient. Even though our country gets a lot of sunlight, many people do not get enough vitamin D due to our lifestyles.
Vitamin D deficiency increases the risk of bone fractures in adults. In addition, vitamin D deficiency in the mother can affect the brain development of the child. In addition, it can also lead to a condition called metabolic syndrome, which is a combination of high blood pressure, high blood sugar levels, and high cholesterol. This condition can lead to diseases such as heart disease, diabetes, and cancer in the long term.
Benefits of Omega-3 Fatty Acids
These help reduce inflammation in our body and control blood clotting. In particular, DHA (Docosahexaenoic acid) is a type of omega-3 found in these oils. Studies have shown that DHA improves brain function and memory, and may help protect against Alzheimer's disease and dementia.
Health benefits of cod liver oil
Because of these essential vitamins and fatty acids, you can gain several health benefits from consuming cod liver oil.
To prevent and control glaucoma
Glaucoma is a serious condition that can cause gradual loss of vision due to increased pressure in our eyes. The vitamin A in cod liver oil prevents damage to eye cells. Also, omega-3 fatty acids reduce pressure inside the eye and improve blood circulation. This helps control the development of glaucoma.
Anticancer properties
Cod liver oil has some potential to fight cancer, as it contains both vitamin A and omega-3. Its anti-inflammatory properties help prevent the formation of cancer cells.
To be precise, for a cancer to grow, it needs to grow new blood vessels. We call this process angiogenesis . Cod liver oil can interfere with this process and control the division of cancer cells. However, this is not the only treatment for cancer, but it can help.
Reducing the risk of multiple sclerosis (MS)
A link has been found between low vitamin D levels and MS , a disease that affects the nervous system. One study found that people who took cod liver oil in their youth had a lower risk of developing MS in adulthood.
Rheumatoid Arthritis Pain Management
This is something that many people know firsthand. Rheumatoid arthritis is an immune system disorder that causes inflammation and severe pain in the joints. Cod liver oil’s anti-inflammatory properties can help control this pain. In a 24-week study, patients who took cod liver oil experienced a significant reduction in pain and were able to reduce the amount of painkillers they used.
Things to be aware of when using cod liver oil (risks)
Although cod liver oil is a beneficial substance, like anything else, there are a few things you should be aware of before using it.
The most important thing is to always talk to your doctor before using any supplement, especially if you have other medical conditions or are taking other medications.
Be careful during pregnancy.
Cod liver oil can help meet your vitamin D needs during pregnancy. However, taking too much vitamin A can be harmful to your unborn baby. Therefore, avoid taking cod liver oil during pregnancy or while breastfeeding without medical advice.
Possible problems with other medications
If you are taking blood-thinning medications like Warfarin , you should avoid taking cod liver oil. Because cod liver oil also has blood-thinning properties, taking the two together can increase the risk of bleeding dangerously.
High doses can cause toxicity.
This is very important. Vitamin A and vitamin D are fat-soluble vitamins. This means that if you take more than you need, they are not easily eliminated from the body and can build up in organs like the liver, causing toxicity . Therefore, never exceed the dosage listed on the bottle or the dosage recommended by your doctor.
Take-Home Message
- Cod liver oil is a very beneficial nutritional supplement rich in vitamin A, vitamin D, and omega-3.
- This can help with joint pain, eyesight, heart health, and immune system development.
- As with any supplement, be sure to consult your doctor before using this.
- If you are pregnant, breastfeeding, or taking blood thinners, avoid taking this without medical advice.
- Take only the correct dosage , as taking more than the recommended dose can cause side effects such as vitamin A and D toxicity.
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