Vitamin A Toxicity: How Much Vitamin A Is Too Much? - Health Essentials
Vitamin A is important for visual health. It also contributes to healthy skin and hair and boosts your immunity. If you're not getting enough, you can develop symptoms like night blindness, dry, scaly skin around your eyes, coarse hair and respiratory infections. Advertising Policy Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy Vitamin A deficiencies are more common in some parts of the world than others. This is because of many factors, including food insecurity, frequent gastrointestinal infections caused by poor water sanitation, inadequate healthcare access and a high prevalence of measles, which can cause vitamin A to be lost in urine. While it's important to avoid a vitamin A deficiency, it's equally important to make sure you aren't overdoing it on supplements. We'll walk you through how much vitamin A you need ...
