It is generally safe for thyroid patients to consume organic apple cider vinegar with the mother, as long as it is consumed in moderation. However, it is important to consult with a healthcare provider before adding any new dietary supplement to your diet, especially if you have a medical condition or are taking medications. Apple cider vinegar is made by fermenting apples, and the mother refers to the strands of proteins, enzymes, and beneficial bacteria that form during the fermentation process. Some people believe that consuming apple cider vinegar with the mother may have additional health benefits, although there is limited scientific evidence to support this claim. There are some concerns that consuming large amounts of apple cider vinegar may interfere with certain medications, such as diuretics or insulin, and may also cause digestive issues in some people