C and D on the FDA 2877 and insert the word or  between the Affirmations. Note: The U.S. Customs Service will treat this entry as a. D Declaration for purposes of duty. Such requests must be made on the FDA 766; include Items 1, 2, and 3 under Declaration C, a. statement of the need to use the option C or D Declaration, a statement of how the product(s) will be brought into compliance and the.
There are 2 reasons that could be the cause behind your low TSH: 1  Your glands simply aren't producing enough;  Your thyroid gland is producing too much of the thyroid hormone which signals to your brain to stop producing anymore.
Doctors are taught that if active thyroid (T3) levels drop, the TSH will increase. Thus, endocrinologists and other doctors tell patients that an elevated TSH is the most useful marker for diminished T3 levels and that a normal TSH indicates that their thyroid status is âfineâ. The TSH is, however, merely a marker of pituitary levels of T3 and not of T3 levels in any other part of the body.