Who should not take omega 3 are the pregnant, from the 8th month of pregnancy until the birth, because the omega 3 dilates the blood vessels and leaves the blood less viscous ("refines the blood"), which can increase the bleeding at the time of delivery.
People who take anticoagulant medications should use the omega 3 capsules in reduced doses, because one of the properties of omega 3 is to decrease platelet aggregation, ie the supplement itself also anticoagulant and antithrombotic action, and decrease the viscosity of blood. In these cases, the daily dose should not exceed 500 mg of omega 3.
Omega 3 is mainly present in fish such as salmon, tuna, sardines, trout, mackerel and herring. Daily consumption should be greater than 1.8 g, equivalent to 300 grams of fish per week.
The use of capsules omega 3 should be indicated by a doctor or nutritionist, who will take into account the patient's history and needs, indicating how much, when and how to take the supplement.
Read too:
What is Omega 3 for?
Can I take Omega 3 in pregnancy?
Does Omega 3 Increase Cholesterol?
