Key points from article :
Sunscreen doesn't prevent Vitamin D production in most people.
Optimal use of sunscreen protects from sunburns and skin cancer caused by UV radiation.
Still allows excellent Vitamin D production in the body.
Previous studies using artificial light in lab settings concluded sunscreen affect Vitamin D production.
Further studies needed on SPF 30 or higher sunscreen that are recommended in real life situations.
Effect on Vitamin D synthesis in people with dark skin types needs to be studied.
In 79 participants serum Vitamin D levels were tested after exposure to natural sunlight for a week.
Research by King's College London, to be published in the British Journal of Dermatology.