Fish oil pills are considered safe for most people, including pregnant and breastfeeding women, when taken as directed, according to MedlinePlus. Fish oil pills supplements contain high levels of omega-3 fatty acids that are used to treat various conditions and promote overall health. As with any supplement or medication, you risk experiencing an adverse reaction when taking fish oil pills. Always talk with your doctor before taking any supplement or medication.
Common Reactions
Fish oil supplements can cause common minor reactions, such as bad breath, nausea, loose stools, belching, nosebleeds and a rash, according to MedlinePlus. Although these are considered routine reactions, you should still inform your physician of any reaction you experience. Taking the supplement with food or freezing it before use may help reduce common adverse reactions.
Warning
You may experience a general allergic reaction to fish oil pills. Drugs.com warns that if you develop an uneven heartbeat, chest pain, body aches, fever and chills, you should seek emergency medical attention. A severe allergic reaction may cause a life-threatening condition called anaphylaxis. According to the American Academy of Allergy, Asthma and Immunology, during anaphylaxis, the body produces an extreme amount of histamine that causes shock. This type of allergic reaction can be deadly. Call 911 if you think you're experiencing anaphylactic shock.
Fish Allergy
If you've been diagnosed with a fish allergy, you should not take fish oil pills. Although fish proteins have been removed from the fish oil supplement, traces of proteins may be present and can cause an allergic reaction. Common symptoms of a fish allergy are skin rashes, shortness of breath, wheezing, nasal congestion and digestive complications, according to the Asthma and Allergy Foundation of America.
Overdose
You will experience adverse reactions if you take too much fish oil. MedlinePlus states that you should take less than 3g a day. Anything more than that can lead to blood thinning, which increases your chances of excess bleeding. An overdose of fish oil supplements may also reduce your immune system's effectiveness. People that have been diagnosed with an autoimmune disorder or the elderly should use extra caution.
Considerations
Fish oil pills are not recommended for people who suffer from bipolar disorder, depression, diabetes, high blood pressure or liver disease. If you have been diagnosed with these conditions, you may experience adverse reactions related to your condition if you take a fish oil supplement.
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