This is a tricky question - new studies actually show that people who skip breakfast aren't at all heavier than people who don't skip it. The myth that people who regularly breakfast aren't as heavy as people who do skip it has arisen through bad scientific studies that were being conducted in the past. Newer ones, however, show that this isn't the case. For that reason, your question is invalid :)
False, the inventors claims were clearly not well tested
Answer:
When S mutans, lactobacilli, and other plaque species were compared in vitro for their ability to ferment sucrose at different pH values, S mutans was found to be more active than the other bacteria at pH 5.0, and thus, it is probably most active in vivo at the very pH at which the teeth begin to demineralize.