Health
Discover the Health Perks and Pitfalls of Cod Liver Oil According to Experts
Cod liver oil, a specific type of fish oil derived from the liver of codfish, is gaining popularity due to its rich content of omega-3 and omega-6 fatty acids, as well as vitamins A and D. While it offers several health benefits, it’s crucial to understand both its advantages and potential risks before incorporating it into your routine. Experts weigh in on why you might consider taking cod liver oil and what you should be cautious about.
Reduces Inflammation
Cod liver oil has been linked to a reduction in inflammation, making it particularly beneficial for athletes and individuals with certain inflammatory conditions. Jennifer Pallian, BSc, RD, explains that “regular use can help lower CRP levels—an indicator of inflammation—both at rest and after exercise.”
Additionally, those suffering from rheumatoid arthritis may experience relief from joint pain, stiffness, and swelling with consistent use. A 2008 study even highlighted its potential as a drug-sparing agent for rheumatoid arthritis patients.
Supports Heart Health
The omega-3 fatty acids in cod liver oil are known for their potential cardiovascular benefits. Although more research is needed, Catherine Hyatt, MD, mentions that “there is some evidence that these may help lower blood pressure, which could improve heart health.”
Sarah Otto also notes that omega-3 supplementation is associated with a reduction in cardiovascular mortality and non-fatal heart attacks, although she emphasizes the need for further research.
Enhances Bone Health
Vitamins A and D found in cod liver oil are essential for maintaining strong bones. These nutrients play a crucial role in bone health, making cod liver oil a potentially valuable addition to your diet if you’re looking to support your skeletal system.
Improves Eye Health
The vitamin A content in cod liver oil is beneficial for eye health, helping to maintain good vision and potentially reducing the risk of eye-related issues as you age. This makes it a worthwhile consideration for those focused on preserving their eyesight.
Risk: Potential for Vitamin Toxicity
While vitamins A and D are beneficial, excessive intake can lead to toxicity. Olalekan Otulana, MBCHB, warns that “vitamin A is fat soluble, which means the body stores it, and taking too much over time can be harmful, particularly for the liver or during pregnancy.”
Jennifer Pallian further notes that “too much vitamin A or D can be toxic and may raise the risk of asthma or high blood pressure during pregnancy.”
Risk: Interaction with Medications
Cod liver oil can interact with certain medications, so it’s essential to consult with a healthcare provider before starting supplementation. Jennifer Pallian cautions that “at higher doses, it can increase bleeding risk, especially when combined with blood thinners like warfarin or aspirin.”
She also points out that it may affect blood sugar levels, potentially interacting with diabetes drugs.
Risk: Increased Risk of Asthma
High levels of vitamin A in cod liver oil supplements have been linked to an increased risk of asthma, even in non-pregnant adults. This is a significant consideration for those with a predisposition to respiratory issues.
Cod liver oil offers a range of health benefits, from reducing inflammation to supporting heart and bone health. However, it’s not without its risks, particularly concerning vitamin toxicity and interactions with medications. Always consult with a healthcare professional to determine if it’s the right choice for you, ensuring you reap the benefits while minimizing potential downsides.
Let us know what you think, please share your thoughts in the comments below.
