I think the study is saying that people positive to C. Albicans showed an increase in the number of them after the high-sugar diet.
" However, in selected subjects with elevated counts of oral C. albicans, we observed an increase in fecal C. albicans counts in response to the diet."
In fact they're saying that they did not count an increase in c. albicans after the diet but they did not say that people already had an overgrowth to begin with. So if the people were healthy, the sugar had no effect or very little.
But my english understanding is limite, so please correct if I'm wrong.
Yes, they are saying that in most the subjects there was no increase in C. albicans by the high refined carbohydrate diet.
But they did find a correlation of increased fecal C. albicans in individuals who already had an oral overgrowth.
This ties in though with what I have been saying about Candida all along. In a healthy individual the diet is not going to cause Candida overgrowth because the growth of Candida is regulated by pH. The flora generate acids that control the Candida.
In order to have the overgrowth there has to be a lack of flora to keep the Candida controlled. This includes the oral cavity that also has flora to control the Candida. The acids produced by the flora not only keep the Candida in a benign yeast form it also turns off the growth gene. Since the growth gene is turned off it does not matter if sugar is present the Candida will not grow out of control. On the other hand if the Candida gene is turned on due to a lack of flora acids then the Candida is going to flourish on the sugars.