Do we need the 'sunshine' vitamin D3 only in winter?
When you feel the sun's rays on your skin, know that your body is creating one of the most important vitamins - D3, which was discovered thanks to centuries of research. The discovery of vitamin D3 became one of the most significant medical achievements of the 20th century, saving millions of lives: It was the year 1650 and in the streets of London, doctors noticed that more and more children were suffering from a strange disease called rickets (their bones were weak and brittle, legs deformed, growth slowed). It wasn't until 1919 that Dr. Huldschinsky exposed children with rickets to ultraviolet light and their bones began to heal! Three years later, biochemist McCollum discovered a substance that prevented rickets and called it vitamin D. Gradually, the existence of the most important form of vitamin D3 (cholecalciferol) was discovered.
