The recent measles outbreak nationwide has sparked an interest in ways to prevent and treat measles infections, including using vitamin A.
CAN VITAMIN A PREVENT MEASLES?
No, vitamin A does not prevent measles. The only effective way to prevent measles is through vaccination with the measles, mumps, and rubella (MMR) vaccine, which has a 97% effectiveness rate.
Vitamin A is an essential nutrient in vision and immune function. While vitamin A does not prevent measles, it has been used to treat measles in regions of the world where vitamin A deficiency is common. In the United States, most people do not have vitamin A deficiency. Doctors may treat severe cases of measles infection with vitamin A.
CAN TOO MUCH VITAMIN A CAUSE PROBLEMS?
- Vitamin A can cause problems when too much is taken, usually over long periods of time:
- Early symptoms: Nausea, vomiting, headache, dizziness, and fatigue.
- Long-term effects: Liver damage, bone pain, blurred vision, and increased pressure inside the skull, which can cause confusion and coma.
- Pregnancy risks: High doses can cause birth defects, making it crucial for pregnant women to avoid excessive intake.
HOW MUCH VITAMIN A IS TOO MUCH?
A normal diet in the United States provides enough vitamin A for most people. The amount of vitamin A in multivitamins is safe when taken in normal doses.
Most problems from taking too much vitamin A happen after taking very large doses for several weeks to months. If you are taking vitamin A supplements, make sure the dose is appropriate.
WHAT IS THE TAKE-AWAY?
While vitamin A does not prevent measles, it can help reduce complications in children who already have the disease. However, excessive intake can be dangerous, so supplementation should be carefully monitored by healthcare providers. The best way to prevent measles is through vaccination. Call the Utah Poison Control Center at 1-800-222-1222 at any time 24/7 for free, expert advice if someone has taken too much vitamin A.