The main difference between a food intolerance and a food allergy ...

[Zulu123]

The main difference between a food intolerance and a food allergy is:
 a. the involvement of the immune system.
  b. the development of hives.
  c. the development of intestinal cramps.
  d. the development of a migraine headache.

Question 2

What other nutrients play an important role in protecting the health of the retina?

[cegalasso]

Answer to Question 1

a

Answer to Question 2

Another nutrient that protects the retina is called zeaxanthin. Lutein and zeaxanthin are collectively known as xanthophylls and can also be found in yellow or orange fruits and vegetables. These nutrients must come from the diet since the body cannot produce them. Beta-carotene, the vitamin A precursor, is also found at low levels in the cells of the retina.

http://www.sciencedaily.com/releases/2008/07/080717092037.htm

[Zulu123]

Thank you!

[cegalasso]

Always glad to help...