the best diet is the one that works for you. for some it’s low carb, for others it’s vegan. what’s key is to focus on what you eat, that’s probably 80% of the battle.
"The best treatment for cancer is the one that works for you" "The best way to change your oil is the one that works for your car" Come on.
Which changes depending on your car, and standards have changed over time - in no small part because they wanted to sell more oil and filters (like selling diet food to folks) and you might not even need one if you have an electric and you might need more oil changes if you have a diesel engine. It doesn't mean that you should apply a one-size-fits-all to your car, it is just going to be off. Not only that, but a lot of folks go well past the recommendations and rarely change oil and they at least get by. Doing it sometimes is better than none at all.
Yeah, I can understand the analogy. It still is lacking a bit, but it works well enough. There is no one size fits all in diets, and you'll need to do the one that works for you and your situation, kinda like doing the oil change that is right for the car you have.
Unfortunately, I don't think this is the sort of analysis that you intended.