Here’s a really bad idea. Send a dozen nutritionists to work alongside regular doctors in a Medecins Sans Frontières team providing emergency treatment to the wounded in a war zone. It’s a bad idea because they would lack any relevant skills. They might help speed up recovery but in the operating theatre they’d be be worse than useless as the wounded come in.
It’s obviously a ludicrous idea but how is it different to GPs trying to deal with a daily stream of people with chronic disease? With (usually) the most cursory knowledge of nutrition and ways to change life style, aren’t they doing something very similar?