Vitamin A vs. Beta-Carotene

Please read my disclaimer before proceeding!

Vitamin A:  An excess of vitamin A can lead to slight swelling of the brain and resulting pressure headaches, which may be described as the feeling of a tight band around the forehead.

Nausea and vomiting may also occur, as can irritability, dizziness, abdominal pain, and hair loss.  Itchy, flaky, or dry skin can also result from too much vitamin A.  Anorexia and resulting weight loss, liver enlargement, menstrual problems, bone abnormalities or stunted growth, and dry or bleeding lips may occur.  There may be an increased risk of birth defects in pregnant women taking high amounts of vitamin A, somewhere over 400 IUs per pound of bodyweight.

Beta-carotene:  The only problem that may arise from high amounts of beta-carotene is an orange-yellow discoloring of the skin.  This can occur with a high intake of yellow and orange fruits and vegetables and the leafy greens.