{"id":9927,"date":"2025-06-28T17:08:57","date_gmt":"2025-06-28T14:08:57","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=9927"},"modified":"2026-06-18T14:46:09","modified_gmt":"2026-06-18T11:46:09","slug":"blood-test-for-vitamins-microdeficiency-becomes-a-big-problem","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/blood-test-for-vitamins-microdeficiency-becomes-a-big-problem\/","title":{"rendered":"Vitamin blood test: when microdeficiency becomes a big problem"},"content":{"rendered":"

Vitamins are not supplements, but keys to cellular metabolism<\/h2>\n

Vitamin deficiencies have long been considered an extreme condition, the result of starvation or serious illness. However, modern laboratory medicine is increasingly detecting chronic microdeficiencies<\/strong>, which do not appear immediately, but over time affect the nervous system, heart, skin, reproductive function<\/strong>.<\/p>\n

Blood test for vitamins<\/strong> \u2014 this is not a \u00abfashion test\u00bb, but part of a deep metabolic screening<\/strong>, which allows you to assess how the body is provided with necessary compounds under stress, diets, medications, or chronic conditions.<\/p>\n

What vitamins can be checked in a blood test?<\/h2>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n
Vitamin<\/th>\nRole in the body<\/th>\nOptimal level*<\/th>\n<\/tr>\n<\/thead>\n
Vitamin D (25(OH)D)<\/strong><\/td>\nImmunity, calcium metabolism, mood<\/td>\n30\u201350 ng\/ml<\/td>\n<\/tr>\n
Vitamin B12<\/strong><\/a><\/td>\nNervous system, hematopoiesis, energy<\/td>\n200\u2013900 pg\/mL<\/td>\n<\/tr>\n
Folic acid (B9<\/a>)<\/strong><\/td>\nDNA synthesis, pregnancy, cell division<\/td>\n>3 ng\/ml<\/td>\n<\/tr>\n
Vitamin A<\/strong><\/td>\nVision, skin, antioxidant protection<\/td>\n0.3\u20130.7 mg\/l<\/td>\n<\/tr>\n
Vitamin E<\/strong><\/td>\nCell protection, cardiovascular system<\/td>\n5\u201320 mg\/l<\/td>\n<\/tr>\n
Vitamin K1<\/strong><\/td>\nBlood clotting, calcium metabolism<\/td>\n0.1\u20132.2 ng\/ml<\/td>\n<\/tr>\n
Vitamin C<\/strong><\/td>\nImmunity, collagen, antioxidant<\/td>\n0.4\u20132.0 mg\/dL<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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*Reference values may vary depending on the laboratory and patient condition.<\/p>\n<\/blockquote>\n

Why is it important to check your vitamin status?<\/h2>\n

Most vitamins are not synthesized in the body or are synthesized in insufficient quantities. Even a complete diet does not guarantee proper absorption<\/strong>, if there is:<\/p>\n