Micronutrition · Textbook of Nutrient Therapy
Vitamin A Deficiency
Assess whether you present clinical signs of vitamin A deficiency.
Vitamin A exists in two forms: retinol (from animal sources, directly usable) and beta-carotene (from plant sources, converted by the liver). It plays a fundamental role in vision, the integrity of skin and mucous membranes, and the proper functioning of the immune system. This questionnaire helps you identify clinical signs suggestive of a deficiency, which is common in vegans, people suffering from intestinal malabsorption, or those with a low-fat diet.
Points forts
- + Rapid identification of clinical signs
- + Simple self-assessment test
- + Detection of skin, visual and mucosal complications related to retinol deficiency
Limites
- - Does not replace blood testing
- - Some signs may have other causes
- - Limited sensitivity for subclinical deficiencies
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