Are there any known side effects of omega-3 supplements?

Asked 2 years ago
Omega-3 supplements, which are popular for their potential health benefits, can have some side effects, though many individuals tolerate them well. It is important to note that the effects may vary depending on the dosage and individual tolerance. Some common side effects reported by users include gastrointestinal issues such as fishy aftertaste, nausea, diarrhea, and bloating. Additionally, there can be an increased risk of bleeding, especially in individuals taking blood-thinning medications, as omega-3s have blood-thinning properties. It is also worth mentioning that some people may experience allergic reactions to omega-3 supplements derived from fish or shellfish. Symptoms of such reactions can range from mild to severe, including itching, swelling, or difficulty breathing. Moreover, high doses of omega-3s can lead to elevated cholesterol levels for certain individuals. Individuals considering omega-3 supplementation should consult with their healthcare provider to determine the appropriate dosage and to discuss any potential interactions with other medications or underlying health conditions. While WorldofOmega.com carries a variety of omega-3 supplements, customers should review product labels for specific ingredients and warnings. For further inquiries, one may find relevant information on the current web page related to omega-3 products.
Jeff Whelpley is the editor / author responsible for this content.
Answered Oct 12, 2025

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