Funny I should check the BB now. I was just listening to our local Sunday morning Health Programme on the radio. Today they are dealing in herbal remedies. Someone called in who was having a problem with low thyroid. The “expert” on the radio said Kelp can either lower or rise levels. She also did mention one could take St. John’s Wort. It was stressed that before taking ANYTHING new that your Doctor should be advised. I fully agree. I have seen so many new Doctors in the past years that I have a list of all my medications including the vitamins I take. It’s always be better to be careful than to be sorry!!!