Protein combining is not necessary at every meal, but it is
necessary at some point.

From
The American Dietetic Association
Position Paper On Vegetarianism
http://www.eatright.org/Public/Gover...s/92_17084.cfm

"Plant protein can meet requirements when a variety of plant
foods is consumed and energy needs are met. Research indicates
that an assortment of plant foods EATEN OVER THE COURSE OF A
DAY can provide all essential amino acids and ensure adequate
nitrogen retention and use in healthy adults, thus
COMPLEMENTARY PROTEINS DO NOT NEED TO BE CONSUMED AT THE
SAME MEAL."

( emphasis in upper case mine )

--
Steve
http://www.geocities.com/beforewisdom/

Be a healthy Vegan or Vegetarian
http://geocities.com/beforewisdom/Veg/healthyVeg.html

"The great American thought trap: It is not real unless it can be seen
on television or bought in a shopping mall"