A hormone-linked nutrient tied to testosterone, mood, immunity and bone strength.
Vitamin D3 is a fat-soluble vitamin that behaves more like a hormone, influencing systems well beyond bone health.
Supports the formula's hormonal layer, working alongside Zinc and Tongkat Ali.
Observational research links adequate D3 status to healthy testosterone levels, mood regulation and bone density, particularly with limited sun exposure.
This describes general research on Vitamin D3 itself, not the finished AlphaTrust product, which hasn't been the subject of its own clinical trial. See the full list or the formula overview for more.