Where can I find information about glycemic loads (as opposed to
glycemic indexes) of common foods?

Hi khk,

Thanks for your question! Though "glycemic loads" are a relatively new
concept in assessing the effects of carbohydrate consumption,
especially in relation to diabetes, comprehensive resources can
nonetheless be found online.

The best by far is Professor Jennie Brand-Miller's glycemic load
breakdown of 750 foods, available for download as a zip file at Rick
Mendosa's diabetes resource site
(http://www.mendosa.com/diabetes_update_41.htm). Brand-Miller's list
also includes the more traditional glycemic indexes. Mendosa offers
helpful printing instructions for the sizeable list and also points
users to condensed and simplified versions of the table. Since the
tables are intended for international use, you'll find some unfamiliar
foods beside old standbys like rice and potatoes. The list also
includes many common commercially prepared products like sports drinks
and frozen dinners.

If you have a specific food in mind, check out North Florida Wellness
at <http://65.187.235.45/nfw/nutrition/glycemic.php?PHPSESSID=d603d6179622fd9a1bc28b284921a79c>.
The site offers a searchable database of a wide variety of foods by
glycemic load or index.

For a short and sweet introduction to the glycemic load of some common
foods, read Greg Watson's posting to VegScience, a YahooGroups mailing
list
<http://groups.yahoo.com/group/VegScience/message/423>.
Watson offers a list of common foods and their glycemic loads, adapted
from Barry Sears' wildly popular diet book The Zone.

I used the following terms in my search:
glycemic loads

All the best!

Emjay-ga

I haven't yet checked out the sites recommended, but the answer
identifies a number of sources that look very promising. The brief
characterizations of the sources provided in the answer are very
helpful. Five stars says it all!