All you need to know about testing Vitamin A levels with a laboratory test
Vitamin A is crucial for normal vision, the immune system, and reproduction. It also helps the heart, lungs, kidneys, and other organs work properly. Derived from two principal sources: retinoids (from animal products) and beta-carotene (from vegetables).
By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure Vitamin A for total reassurance.
Professional analysis in an accredited laboratory ensures rapid result delivery.
Tests which include a Vitamin A test:
High vitamin A intake, most often from supplements, can lead to toxicity known as hypervitaminosis A.
Hypervitaminosis A has been associated with symptoms such as dizziness, nausea, headaches, coma, and death.
Low vitamin A levels can be linked to vision problems, particularly in reduced light (night blindness). Vitamin A deficiency can also impair immune function and is associated with increased susceptibility to infections.
Low vitamin A levels are sometimes linked to lower intake of vitamin A–rich foods such as liver, fish oils, and leafy green vegetables. Use of vitamin A supplements may be considered under medical supervision.
Measure your Vitamin A levels and with a nurse or clinic test kit
You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.
This Test is advised if you:
Dr. Shahzaib Ahmad MBBS, BSc, MRCP, FRCA, FFICM
Clinical Supervisor - Vitall|GMC 7495062|Profile
Reviewed on 03/02/2026
Next review due 03/02/2027
Review focus: Blood biomarkers, laboratory testing methodology, and biochemical interpretation.
