You can say it until you are blue in the face, but it is still just your opinion. The fact is there is nothing in the Bible to support the "healthy eating" theory (and much to undermine it).
notable health benefits
According to man, not according to God. These spiritually-looking “health diets” were created largely by men who misinterpret the Bible and fail to see food (like clothing and appearance) as purely ceremonial aspects of life among God's old covenant people.
It isn’t my opinion that the things that God declared as food for us are also good for us and keep the body healthy. It is a fact. Before the flood people lived hundreds of years. It is not coincidental that various herbs have a variety of health benefits.
And for the record, as you seem to be incredibly antagonistic about this, I didn’t come out in defense of this guy’s diet. In fact I came out and opposed it.
Before they figured out some of the cleanliness principles scientifically (sanitizing and microorganisms etc) these things would have had some effect of minimizing contact with such pathogens. But you’re right, it’s nowhere in Scripture. It’s all framed in the context of being faithful to God and pure before him, not avoiding disease.
Generally speaking though, obeying God’s commands do have their health benefits/protections. I think that’s a given. But it isn’t good motivation. The paragraph above this one is a better motivation.
When it comes down to it this guy is promoting a form of behavior that is touted as being ‘godly’ — and instead of emphasizing it being of any spiritual value (which it isn’t) he is emphasizing the temporal benefits (which is a faulty motive in Scripture for any action). It plays right into today’s deluded evangelical mindset that ‘follows’ Christ for what benefit he can give you NOW rather than simply because you are profoundly grateful and humbled when you realize he paid the penalty for your utter sinfulness and saved you from eternal separation from him in Hell.