Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — progesterone deficiency

Heavy periods affect millions of women, yet the underlying causes are frequently misunderstood or left unaddressed. From oestrogen and progesterone imbalances to structural issues such as fibroids and adenomyosis, there are several well-established reasons why menstrual bleeding can become excessive. This article explains the physiology of the menstrual cycle, the most common causes of heavy periods, and how hormone testing can help identify what is driving your symptoms — so you can take informed steps towards better menstrual health.

If you’re doing everything right — eating well, exercising, taking your vitamins — but still can’t shift the weight, a hormone imbalance may be working against you. Hormone Health Educator Candace Burch of ZRT Laboratory breaks down the 8 most common hormonal culprits behind unexplained weight gain, from estrogen dominance and high cortisol to low vitamin D, disrupted sleep and a lack of strength training.

Why does weight gain accelerate at menopause? Can estrogen dominance cause low cortisol? Is saliva testing better than blood? Hormone Health Educator Candace Burch of ZRT Laboratory answers the most common questions from women struggling with hormone-related weight gain — covering everything from adrenal fatigue and vitamin D deficiency to birth control, bioidentical progesterone and why “your hormones are fine” from a standard blood test may not tell the whole story.

Weight management is a topic that generates a lot of questions — and hormone imbalance is one of the most common but overlooked causes. Hormone Health Educator Candace Burch of ZRT Laboratory answers the 10 most frequently asked questions about hormones and weight gain, covering everything from postmenopausal belly fat and estrogen dominance to vitamin D deficiency, thyroid imbalance and why standard blood tests often miss the picture.

If you are experiencing infertility issues, understanding which hormones to test — and why — is the essential first step. Dr. Alison McAllister of ZRT Laboratory explains the full fertility hormone profile: from LH and FSH as indicators of ovarian reserve, to estradiol, progesterone and testosterone for ovulation health, adrenal hormones cortisol and DHEA-S, thyroid markers including TPO antibodies, and the often-overlooked role of vitamin D in fertility and PCOS.