Part 4/14:
Despite the natural efficiency of sun exposure, many modern lifestyles have drastically reduced outdoor activity. Urbanization, indoor work environments, and technological conveniences mean fewer of us spend enough time outside. Ironically, this reduction in sunlight has led to increased dependence on supplements.
A key question emerges: Does vitamin D from supplements equate to vitamin D produced naturally from sunlight? The answer hinges on understanding the chemistry and physiology involved. Both sources provide vitamin D3, but the body's processes of activation, storage, and regulation are complex.