I just reviewed JB’s No Nononsense DVD and here’s what they had to say…
They have found (first got the tip from Dr. Eric Serrano) that some of their clients (or people in general) seem to build up an intolerance (maldigestion: i.e. bloating/diarrhea/gas) to the powder in time - if using the same one for a long time. So what they’ll often do is go out and buy 2-3 different protein powders and use one on day 1, another on day 2, and then the last one on day 3 before repeating the cycle. I’m just not sure if they do this for everyone (sounded like they do) or if they just do this w/ people that experience the discomforts listed above.
The bloating, diarrhea and gas are more associated with lactose intolerance in such products, which is more likely as everyone is lactose intolerant to varying degrees, rather than attributing it to some sort of hypersensitivity reaction. I’ve never really seen this anecdotally either. Even if the product is said not to contain lactose, and instead if there were one compound that one were trying to say that a person or persons do have a hypersensitivity reaction to, I don’t see how varying the brand would help. Even if one knew that a given compound were causing the effect and one brand had a lower amount of whatever that may be, why wouldn’t you simply use the brand which had the smallest amount?
OR, now that I think about it, what I’m guessing is the most likely reasoning, being that in those that suffer such reactions, using a given product which causes a greater immune response and then switching to one which causes less of a reaction immediately after, thus potentially benefiting from the tolerance or desensitization developed from using the product which caused the greater allergenic response. The problem I have with this however, is how one determines which brands fit those categories and how accurately one can gauge the degree of response from one product to the next.
I’m having a hard time finding the reasoning behind this, but if those that use this method believe it actually works for them, more power to them.