{"id":151,"date":"2026-08-05T09:00:00","date_gmt":"2026-08-05T09:00:00","guid":{"rendered":"https:\/\/demo.uncoderbuilder.com\/verdia\/vitamin-d-how-much-is-actually-enough-in-winter\/"},"modified":"2026-10-03T20:45:26","modified_gmt":"2026-10-04T03:45:26","slug":"vitamin-d-how-much-is-actually-enough-in-winter","status":"publish","type":"post","link":"https:\/\/demo.uncoderbuilder.com\/verdia\/vitamin-d-how-much-is-actually-enough-in-winter\/","title":{"rendered":"Vitamin D: how much is actually enough in winter?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Supplementing blind is common and mostly harmless \u2014 but testing first tells you the dose, and whether you need one at all.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aug 5, 2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5 min read<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dr. Arjun Mehta<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Between October and March, most people living above 40\u00b0 latitude make almost no vitamin D from sunlight. Stores built over summer drain through winter, and by February a large share of the population is genuinely low.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The number worth knowing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">We look for 25-hydroxyvitamin D above 30 ng\/mL, and ideally in the 40 to 60 range. Below 20 is a deficiency worth treating properly. Above 100 is not better \u2014 it raises calcium and does nothing useful.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dose follows the result<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Someone at 18 ng\/mL needs a different protocol from someone at 34, and body weight changes both. That is the whole argument for testing before supplementing: the same pill does very different things to two people.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Retest twelve weeks after starting. If the number has not moved, absorption is the problem, not the dose \u2014 and that is worth investigating.<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">Dr. Arjun Mehta<\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Internal medicine, Verdia<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Supplementing blind is common and mostly harmless \u2014 but testing first tells you the dose, and whether you need one at all.<\/p>\n","protected":false},"author":1,"featured_media":77,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biomarkers"],"_links":{"self":[{"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/posts\/151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/comments?post=151"}],"version-history":[{"count":1,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/posts\/151\/revisions"}],"predecessor-version":[{"id":238,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/posts\/151\/revisions\/238"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/media\/77"}],"wp:attachment":[{"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/media?parent=151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/categories?post=151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo.uncoderbuilder.com\/verdia\/wp-json\/wp\/v2\/tags?post=151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}