Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Sunshine Vitamin

Vitamin D is far more than a bone health nutrient. It functions as a hormone and influences immunity, mood, hormonal balance, and cognitive function. This article explores why deficiency is so common in the UK and what to do about it.

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.