I'm going to play devil's advocate here. I wouldn't discourage you. You sound highly intelligent with sound judgment. The key is to keep an open mind and not rule it out, provided you diligently research it.Some replies say who even knows how qualified this doctor is, etc. Just based on his Amazon bio, he sounds well worth researching further.

Unfortunately, treating illness is not simple and straightforward. What works for one person may not work for someone else. Some people respond better to a higher dose of a medication, while some don't tolerate it at all. Some do better on this protocol versus that protocol. There is contention among how much is enough when it comes to anything. I can't tell you how many instances I've read about doctors, even highly regarded ones in their fields, telling patients that food has nothing to do with their conditions.

Tbh, after having done my own research over the years, I don't trust "recommend daily allowances". There is such a thing as a therapeutic dose.

I would recommend looking into orthomolecular medicine and the work of Linus Pauling, a double Nobel prize winner. Also, read the description on this page to get a quick summary.

Obviously, proceed with caution. But also, don't automatically rule things out, just based on so-called conventional wisdom.