Tag: Sad lamp

According to light therapy manufacturers, happy lights are intentionally made without ultraviolet (UV) rays to ensure safety. This crucial fact explains why a happy light does not provide vitamin D, as the body's synthesis of this vitamin depends entirely on UVB radiation interacting with the skin.

Did you know that most light therapy lamps designed for Seasonal Affective Disorder (SAD) do not produce the specific ultraviolet (UV) light required for your body to synthesize vitamin D? The answer to the question, "Do light therapy lamps increase vitamin D?" lies in understanding the difference between visible and UV light spectrums, and the intended purpose of the device.

Despite mimicking natural sunlight, therapeutic light boxes used for conditions like Seasonal Affective Disorder (SAD) do not give you vitamin D. This is because these devices are intentionally designed to filter out the ultraviolet (UV) radiation necessary for vitamin D synthesis in the skin, a critical safety feature.

Over 50% of the world's population is at risk for vitamin D deficiency, leading many to seek alternative light sources for supplementation. But while many turn to bright light therapy devices, the crucial question remains: **Do you get vitamin D from a light box?**.