What is vitamin A good for / what are the effects of retinol?

Vitamin A is essential for a healthy immune system, good vision, and other body functions.

What contains vitamin A?

Vitamin A is found in many foods, including eggs, milk, liver, dark leafy greens, and carrots.

What are the symptoms of vitamin A deficiency?

Symptoms of vitamin A deficiency include dry eyes, poor vision, and a weakened immune system.

What are the signs of vitamin A overdose?

Symptoms of vitamin A overdose include headache, nausea, and vomiting.