Does 150mg "green tea phytosome decaffeinated extract containing green tea extract bound to phosphatidylcholine" have tannins? it's in my supplement.

Supplement: In the U.S. the FDA doesn't investigate or study supplements. Accordingly, most physicians could no answer this question. Perhaps your pharmacist can help you.

Yes: Green tea (and all teas) contain tannins. In general these tannins are beneficial antioxidants.Some articles I read say green tea has only low amounts of tannins and others say it has high amounts of tannins! However, 150 mg of extract is not a huge amount and only a fraction of that is tannins. See https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=19&contentid=greenteaextract