Thyroid function tests are blood tests that check the levels of the hormones (chemicals) made by the thyroid gland. Some thyroid function tests also check the level of a hormone made by the pituitary gland in the brain, which acts on the thyroid gland.hyroid function tests are blood tests that check the levels of the hormones (chemicals) made by the thyroid gland. Some thyroid function tests also check the level of a hormone made by the pituitary gland in the brain, which acts on the thyroid gland.
Yes, high intakes of some forms of vitamin A can be harmful. Getting too much preformed vitamin A (usually from supplements or certain medicines) can cause dizziness, nausea, headaches, coma, and even death. High intakes of preformed vitamin A in pregnant women can also cause birth defects in their babies.
Research has shown that vitamin B6 supplements can be helpful for many womenâs fertility health issues, including: PMS, Luteal Phase Defect (LPD), and nausea in the first stages of pregnancy. If you take your daily dose of vitamin B12, fertility is just a matter of time. This vitamin helps you balance your hormones. Of course, this means that you have to give up bad habits including caffeine, alcohol and excessive sugar intake.