Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — vitamin d testing

Vitamin D, comprising D2 and D3, is an essential nutrient that plays a vital role in our overall health and well-being. From maintaining strong bones to supporting immune function, this sunshine vitamin is a key player in various physiological processes. In this blog, we will explore the importance of Vitamin D, identify common symptoms of deficiency, discover natural sources, and learn about the Vitamin D blood spot test.1. Understanding Vitamin D:Vitamin D is a fat-soluble vitamin that exists in two main forms: Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol). While Vitamin D2 is found in plant-based sources, such as mushrooms,...

Did you know that low vitamin D could be disrupting your sleep? Research shows that vitamin D plays a key role in serotonin and melatonin production — the hormones that regulate your sleep-wake cycle. Dr. Kate Placzek explores the science behind the vitamin D–sleep connection, what else low vitamin D affects, and how to find out if deficiency is at the root of your sleep problems.

Thinning hair is more than a cosmetic concern — it is often a signal of something happening internally. From stress and cortisol to menopause, thyroid dysfunction, PCOS and nutritional deficiencies, hormones play a central role in hair health. Dr. Kate Placzek breaks down the science behind hormonal hair loss and what you can do about it.

A growing body of research suggests that mitochondrial dysfunction may lie at the root of many treatment-resistant mental health conditions — including depression, anxiety, bipolar disorder, OCD and even dementia. In this clinical overview, Dr. Peter Bongiorno explains why neurons are particularly vulnerable to mitochondrial damage, how stress, heavy metals and hormonal imbalances compound the problem, and what a comprehensive 5-step repair plan looks like in practice.

Had your vitamin D tested and left confused by the result? You are not alone. Different agencies have different opinions on what counts as deficient, sufficient or optimal — and the gap between “normal” and “optimal” matters more than most people realise. Dr. Jillian Harrington breaks down the reference ranges, explains what your result actually means, and outlines how to work towards the level that is right for your health.