Can fish oil DHA cause allergies

Fish oil DHA generally does not cause allergies, but a small number of people who are allergic to fish or seafood may experience allergic reactions. Fish oil DHA is mainly extracted from deep-sea fish, and the risk of allergies is related to individual constitution. It is recommended that individuals with allergies consult before use and stop immediately if symptoms such as rash and difficulty breathing occur. Allergic reactions to fish oil DHA are usually associated with residual fish protein. Legitimate fish oil undergoes multiple purification processes and has extremely low protein content, making it safe for the vast majority of people to take. Some sensitive individuals may develop immune responses to trace residual proteins, manifested as skin itching, redness, or gastrointestinal discomfort. Choosing high-purity fish oil products that have undergone third-party testing can reduce risks. In rare cases, severe allergic reactions may occur. This group of people often have a clear history of fish allergies, and consuming fish oil may cause systemic allergic symptoms such as laryngeal edema and blood pressure drop. Such patients should avoid all fish derived products and consider algae DHA as an alternative source if necessary. It is recommended to undergo allergen testing before use to confirm sensitivity.

When supplementing with fish oil DHA on a daily basis, it is recommended to observe the body's reaction for 24 hours after the first dose. People with allergies should gradually increase the dosage starting from the minimum and avoid taking it on an empty stomach to reduce gastrointestinal irritation. Paired with vitamin E can enhance stability, and should be stored away from light and moisture. If long-term use is required, regular monitoring of coagulation function should be carried out, and the use should be suspended two weeks before surgery. Special populations such as children and pregnant women must consult a professional physician before use.