Saturday, March 19, 2011

Vitamin A and Beta Carotene

Vitamin A
Recommended daily intake (DV-Daily Value):
For men (age group 19 +) - 3,000 IU (International Units); For women (age 19 +) - 2,310 IU
Suggested optimal amount (DV):
For men (19 +) - 10,000 IU; For women (19 +) -10,000 IU

Toxicity can occur as low as 15,000 IU +.

Toxicity symptoms: Dry skin, nausea, headaches, fatigue, irritability, liver damage.

Uses: Plays an important role in eye protection, helps maintain good vision and normal vision in dim light. Forms and maintains normal structure and functions of mucous membranes to assure healthy eyes, skin, hair, gums, and various glands. Supports the immune system. Promotes bone growth and teeth.

Vitamin A May Protect Ears

Like zinc, vitamin A is found in high concentrations in the cochlea.

Beta-Carotene: Immunity Booster

Beta-carotene is the pigment that helps turn carrots, cantaloupe, and other fruits and vegetables orange or yellow.

Vitamin A: Immune System Enhancer

Vitamin A seems to top the A-list of nutrients that are vital for a strong immune system.
While studying the effects of vitamin A in children, doctors observed that even a moderate deficiency can weaken the immune defenses of a child's respiratory tract. Vitamin A deficiency causes damage to the naturally protective mucous membrane barrier of the respiratory tract,

Eye Protection

When it comes to cataracts, beta-carotene and plain old vitamin A may offer protection. Scientific research shows