If you take one supplement, let it be Magnesium., Lara Briden ND

“...8 Ways that Magnesium Rescues Your Hormonal System
1) Magnesium regulates cortisol. Magnesium calms your nervous system and prevents excessive cortisol. Your stress hormonal system, also called your hypothalamic-pituitary-adrenal (HPA) axis, is your central hormonal system. When it functions well, then your other hormonal axes—thyroid and sex hormones—will function well too.
2) Magnesium lowers blood sugar. Magnesium is so effective at sensitizing the insulin receptor that I refer to it as our ‘natural metformin’. Better insulin control means fewer sugar cravings. Healthy insulin sensitivity is important for weight loss, PCOS, and it also prevents osteoporosis.
3) Magnesium supports thyroid. Magnesium is essential for the production of thyroid hormone. It is also anti-inflammatory, which helps to quiet the autoimmune inflammation that underlies most cases of thyroid disease. Other ways to address thyroid autoimmunity include gluten-elimination and a selenium supplement.
4) Magnesium aids sleep. As I’ve written here before, magnesium is the great sleep-promoter, and sleep is crucial for hormone production. Sleep is when we should enjoy a beneficial surge in anabolic hormones such as DHEA and growth hormone.
5) Magnesium fuels cellular energy. Magnesium is so intricately involved with mitochondria and energy production, that we can safely say: “Without magnesium, there is no cellular energy”. Hormonal tissue is metabolically active, so it requires even more cellular energy and more magnesium than other tissue.
6) Magnesium makes hormones. Magnesium is involved in the manufacture of steroid hormones such as progesterone, estrogen and testosterone. Magnesium has been shown to reduce hot flashes by 50%.
7) Magnesium activates vitamin D. Without enough magnesium, vitamin D cannot do its job . Conversely, too much vitamin D supplementation can cause magnesium deficiency.
8) Magnesium is anti-aging. The mineral has been shown to prevent telomere shortening, reduce oxidative stress, and enhance the production of glutathione...”
Learn more: http://www.larabriden.com/8-ways-that-magnesium-rescues-hormones/

Magnesium helps thyroid, adrenal fatigue, hair loss, PCOS, PMS, and menopausal symptoms. We are all deficient in magnesium because we lose it during stress.