[yeli]

I do know lostboy/enigmahealth from my days in Chicago and while I repsect you as a photog, I have to repectfully disagree with you posting infomation that like this. I am a registered dietitian and I would like to offer a bit of perspective on this topic.

The "Cephalic Phase Insulin Response (CPIR)" has little to do with diet soda and more to do with an individual's body reponse to eating. The research compiled on this topic is inconsistant and shows very little significance in linking CPIR to overeating in healthy individuals. You can vew articles on this topics from as far back as 1985 on the web and find no evidence of their being a direct link between soda and CPIR.
Cephalic phase secretions are associated with the sight, smell, and taste of food, as opposed to its postingestional consequences. Drinking the diet soda is unlikely to cause the reponse as opposed to smelling a steak or licking an ice cream cone.
Could the company you are working for will provide peer-reviewed journal research papers indicating the direct link?
The link to insulin reponse is complicated and most places that this topic is dicussed is on message boards that also tout fad diets like the Atkins diet, the zone diet and even worse....the grapefruit diet.

Eat all foods in moderation, increase your intake of whole grains, fruits and vegetables and live a happy life without the assistance of someone's "supplements" herbs and the like.