Tunnel vision physicians who believe that everyone should be vegan, or be intermittently fasting, or in ketosis, or on an incredibly low-fat diet, or vegetarian, or low carb high fat, - and I'm sure the list goes on.
It's a head scratcher for me because a physician's training ought to have them know better.
Why?
Because for virtually every medical problem, multiple therapies and therapeutic modalities exist. And because physicians know that some drugs work better than others with different patients - sometimes predictably, and sometimes unpredictably, and that sometimes people have adverse reactions to certain drugs that require them to try alternatives.
Diets are the same.
Whether for weight management, general health, or the treatment of particular medical conditions, certain patients, sometimes explicably and sometimes not, will do better with different diets, both in terms of the impact that diet has on whatever they're trying to treat, but also on their ability to enjoy that diet enough to sustain it long term.
And so even if there were a scientifically proven best diet for a particular issue (and for weight, plainly at this point, there isn't), there'll still be some people for whom it fails, and some people for whom its adverse effects on their lives leads to its discontinuation, and if they happen to be on that diet because they're following or seeing one of those MDs who is so stuck on there being only one diet to rule them all, I guess they're just out of luck.
So what drives those MDs? I think the answer varies. For some it's likely the extension of their own personal experience and success with a particular dietary approach. For others, it may be the consequence of literal or intellectually sunk costs. And finally some may not have sufficient background to evaluate much on their own and instead simply parrot an eloquently delivered diet zealot's talking points (perhaps especially in the cases of MDs converted by other MDs). But regardless of why one thing's for sure, the promotion of one right or best diet isn't good medicine, it compromises patient care, provides oxygen to the fire of fads, serves as catnip for publishers, the media, and the public, and solidifies the notion that there are dietary demons and deities, all of which in turn torches the hope of improved nutrition related scientific literacy in society.
Nutritional populism is a bad look irrespective of which diet it happens to be promoting.
[Photo by Anthony DeRosa from Pexels]
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