{"version":"1.0","provider_name":"Smart Tan News","provider_url":"https:\/\/news.smarttan.com","title":"SPF Prevents \u2018D\u2019 Production: Study - Smart Tan News","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"io076QIrs5\"><a href=\"https:\/\/news.smarttan.com\/index.php\/spf-prevents-d-production-study\/\">SPF Prevents \u2018D\u2019 Production: Study<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/news.smarttan.com\/index.php\/spf-prevents-d-production-study\/embed\/#?secret=io076QIrs5\" width=\"600\" height=\"338\" title=\"&#8220;SPF Prevents \u2018D\u2019 Production: Study&#8221; &#8212; Smart Tan News\" data-secret=\"io076QIrs5\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/news.smarttan.com\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"A Danish dermatology group reported this month that using the amount of sunscreen health officials recommend will completely block vitamin D production \u2014 adding to the volume of studies showing that SPF over-use will deprive people of natural vitamin D production.  \u201cWhen the amount of sunscreen and SPF advised by the World Health Organization is used, vitamin D production may be abolished,\u201d authors from the Bispebierg Hospital Department of Dermatology wrote in the British Journal of Dermatology this month. \u201cRe-evaluation of sun protection strategies could be warranted.\u201d  The group conducted a randomized clinical trial with different sunscreen layer thicknesses. As you might expect, the thicker the sunscreen, the less vitamin D produced.  Smart Tan encourages sunscreen usage only when sunburn is possible \u2014 which is, in fact, the only intended usage for the product. The multibillion-dollar over-the-counter skin care industry promotes daily 24\/7 usage of sunscreen in daily-use cosmetics even when the sun isn\u2019t shining, which Smart Tan contends is misbranding the product.  As vitamin D levels have plummeted worldwide in the past generation, over-use of sunscreen and\/or overzealous sun avoidance is believed by most researchers to be the main reason \u2014 except by dermatology groups or groups tied to pharmaceutical sunscreen companies.  To read coverage of the study on Medicalxpress.com, click here.  To read the study click here.","thumbnail_url":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2022\/08\/Smart-Tan-Logo.jpg","thumbnail_width":520,"thumbnail_height":200}