I am very familiar the the article Marcason refers to. The authors of the article raised points 1-3. They have raised similar points in previous articles. These type of comments are expected in any research article as the authors are suppose to report potential problems and difficulties as a matter of normal practice.
She is correct that there are very few trained RD. This problem is slowly being overcome with prestigous organizations such as King's College London who is putting on course for registered dietitician in the UK. This happened after the UK conducted extensive clinical trials on this dietary approach.
What Marcason forgot to report was the conclusions of the article which are
"Simple concepts of how food might trigger functional GI symptoms have led to at least one efficacious dietary approach that is effective in the majority of patients with FBD [Functional Bowel Disorders]. The evidence base for the low FODMAP diet is strong, provided dieticians with the skills to implement it are available. Other approaches, most of which are, at least theoretically, complementary to the low FODMAP diet, are being actively pursued in clinical practice, if not always in scientific enquiry. There is a real need for biomarkers or other clinical predictors to enable individualization of the dietary approach, particularly as many diets require the use of elimination diet methodologies. Gastroenterologists can no longer ignore specific dietary intervention for patients with functional gut symptoms."
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Re: Everyone seems to miss an important point ....
