Fish oil supplements have long been celebrated for their potential health benefits, best known for their promising effects on heart health. However, as with any supplement, there are potential downsides that individuals should be aware of, especially those at higher risk due to certain health conditions or medications.
To shed some light on a few potential risks associated with fish oil supplements, we consulted Dr. Michael Green, MD. He told us that this seemingly harmless supplement could come with some scary downsides, including high cholesterol levels and contamination. Find all of Dr. Green’s insight on these dangers below.
Risks of fish oil supplements
According to Dr. Green, one of the primary concerns associated with fish oil supplements is their ability to act as blood thinners. He explains, "Fish oil supplements can act as blood thinners due to their omega-3 fatty acids, specifically EPA and DHA." While this property can be beneficial for reducing the risk of clot formation and improving cardiovascular health, it may also pose a risk of increased bleeding, particularly in individuals already taking blood-thinning medications like aspirin, warfarin, or clopidogrel.
Furthermore, Dr. Green warns that fish oil supplements may not be suitable for everyone. "In some cases, fish oil supplements may raise LDL cholesterol levels, particularly in individuals with high triglyceride levels," he warns. "While this effect is not common and may be outweighed by the overall benefits of omega-3 fatty acids, individuals with existing heart conditions or high cholesterol levels need to monitor their lipid profile regularly when taking fish oil supplements."
Another concern is the potential for contamination in fish oil supplements. Dr. Green notes, "Fish oil supplements may also contain contaminants such as mercury, dioxins, and polychlorinated biphenyls, which can accumulate in fish tissues." Luckily, he assures us, reputable manufacturers typically purify their products to reduce contaminant levels. However, "there is still a risk of exposure, particularly with lower-quality supplements or those sourced from contaminated fish species."
To mitigate these risks, Dr. Green emphasizes the importance of consulting with a healthcare professional before starting any new supplementary regimen. "Always speak with your doctor before starting new supplementary regimens," he advises. He also recommends opting for fish oil supplements from top manufacturers that adhere to high-quality control standards and undergo third-party testing for purity and potency.
Additionally, adherence to recommended dosage guidelines is crucial. As Dr. Green notes, "Taking excessively high doses of fish oil can increase the risk of negative effects such as bleeding and gastrointestinal issues." All in all, it's essential to follow the dosage instructions provided on the supplement label or as directed by a healthcare provider.
For those concerned about the potential downsides of fish oil supplements, Dr. Green suggests incorporating omega-3s into the diet through natural sources like fatty fish, salmon, flaxseeds, chia seeds, and walnuts. "Pay attention to any adverse effects or changes in your health while taking fish oil supplements," he advises, "and discuss them with your doctor should they occur." Got it!
