Vitamin D, Sunscreen Use and Skin Damage
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The Interplay of Sunscreen, Vitamin D Synthesis, and Oxidized Fats in the Body
Vitamin D is essential for maintaining healthy bones, supporting immune function, and reducing inflammation. One of the primary sources of Vitamin D is synthesis in the skin upon exposure to ultraviolet B (UVB) rays from sunlight. However, the use of sunscreen and the presence of oxidized fats in the body can affect this process. All cancers as well as many other health conditions are associated with low Vitamin D levels in the body - especially skin cancers!
Vitamin D Synthesis in the Skin
When UVB rays from the sun penetrate the skin, they convert 7-dehydrocholesterol to pre-vitamin D3, which is then transformed into Vitamin D3 (cholecalciferol). This process is crucial for maintaining adequate Vitamin D levels, especially since dietary sources alone are often insufficient.
The Role of Sunscreen
Sunscreen is designed to protect the skin from harmful UV radiation, reducing the risk of sunburn and skin cancer. But, does it actually do all of that? By blocking UVB rays, sunscreen can also impede the skin’s ability to synthesize Vitamin D. Studies have shown that sunscreens with a high sun protection factor (SPF) can significantly reduce the production of Vitamin D3.
Skin Damage from the Sun
The sun can cause damage to the skin in the form of burning. What is interesting is that a person that has high levels of oxidized fatty acids and low vitamin D levels is more apt to burn in the sun than those who are eating good fats, avoiding all bad fats and seed oils and have optimal vitamin D levels on a blood test.
Sunscreen
Sunscreen is known to be highly toxic to the skin and body. It is known that the highest rates of skin cancers are found in areas the use high amounts of sunscreen and spend many hours in the sun.
If you are to use sunscreen when you need to be in the sun for longer, use plain zinc oxide. It's a safe alternative that will protect the skin and reduce your risk of developing cancer.
Conclusion
The synthesis of Vitamin D in the skin is a delicate process influenced by sun exposure, the use of sunscreen, and the presence of oxidized fats in the body. Moderate sun exposure and dietary/supplementary adjustments can help maintain adequate Vitamin D levels and protect your skin. Additionally, minimizing the intake of oxidized fats and adopting a healthier lifestyle can support overall well-being and enhance Vitamin D metabolism.
Start low and slow. If you are not used to sun exposure start with spending only 20-30 min in the sun before you get in the shade.
By understanding these interactions, we can make informed decisions about our sun exposure, dietary habits, and overall health strategies to ensure optimal Vitamin D levels and reduce the risk of associated health issues.
Note: I wrote a more detailed blog on this topic on my website: www.nurturerestore.com.