Unless you're a doctor who is familiar with all the medications that your parents are currently taking, it's probably not a good idea to recommend that they tak

Unless you're a doctor who is familiar with all the medications that your parents are currently taking, it's probably not a good idea to recommend that they take specific supplements. For example, omega 3 fatty acids can act as a mild anticoagulant, and if your parents have been prescribed blood thinners, the additive effect of the two could lead to problems.[1] [1] https://www.mskcc.org/cancer-care/integrative-medicine/herbs/omega-3 https://www.mskcc.org/cancer-care/integrative-medicine/herbs... [under the heading "What else do I need to know?"]