tethersegg: you must have misunderstood tour GP. Vitamin D is not being prescribed to every choked in UK. There ricketts is topical and so indications on when to prescribe have been discussed (including on This Morning), but it's not being given to all.
A tan isn't healthy - it's a sign that the skin is reacting to danger, and the real damage won't show up for years, even decades. Here is a quotation from the Australian Cancer Council (experts in this area):
"A tan is not a sign of good health or wellbeing, despite many Australians referring to a ?healthy tan?. Fifty per cent of Australian adults still hold the misguided belief that a tan looks healthy.
"Tanning is a sign that you have been exposed to enough UV radiation (from the sun or solarium) to damage your skin. This will eventually cause loss of elasticity (wrinkles), sagging, yellowish discolouration and even brown patches to appear on your skin. Worst of all, it increases your risk of skin cancer.
"A tan will offer limited protection from sunburn, but usually no more than SPF4, depending on your skin type. It does not protect from DNA damage, which can lead to skin cancer".