I was on the dreadmill, watching whatever was on the screen in front of me.  Not really paying attention, when an advertisement for Wish Bone Salad Dressing came on.  Interesting – the full fat products were being pushed as good for your health – huh?  That’s right.  Why? 

Apparently someone finally realized that all those green leafy veggies that make up a salad contain vitamins A, D, E and K, all of which are “fat soluble.”  They are only used by the body if they are dissolved in fat, Bio- availability.  We may have been shooting ourselves in the foot by pouring fat-free dressings on our salads.

Here is the Wish Bone Ad as it appears on their Web site. They are pushing the concept that:

According to the CDC, more than 70% of Americans are not getting their recommended daily servings of vegetables, and less than 1 in 10 Americans meet their calorie-specific MyPyramid fruit or vegetable recommendations.  Raw vegetable salads can be a strong contributor to vegetable consumption. Great-tasting Wish-Bone® salad dressing is a delicious way to help eat more vegetables.
In addition, the oils in Wish-Bone® help the body better absorb vitamins A and E from salad vegetables as compared to a salad without dressing!

There is a great deal of information on this site, and well worth reading and viewing.

So the next time some low-fat geek attempts to convince you to only use balsamic vinegar, or no fat dressing, let them know that you are assisting the fat soluble vitamins become usable by your body. 

BTW:  Make your own dressing with Olive Oil and not Soy Bean Oil.  Avoid overdosing on Omega 6.