The primary acetaldehyde scavenger recommended in the "Yeast Abatement Protocol" chapter is timed-release N-acetyl-L-Cysteine (RESBID) as you suggest. The underlying epiphany here is that a lot of successful remedies and "diets" embody a molecular structure that includes the salient sulfur. This means that they may also share a common mode of action in their ability to scavenge yeast-emitted acetaldehyde before it gets a chance to interact with the body. Acetaldehyde as a byproduct of alcohol consumption is produced in the liver where there are an abundance of enzymes to deal with it but the acetaldehyde released by yeast in the gut can get into the bloodstream and be transported everywhere before the detoxification process can occur.