>> <i>Rather than jumping on the low-carb bandwagon before his ideas are properly tested, the precautionary principle suggests that it might be more reasonable to follow a moderate diet like the Mediterranean diet (or to follow Michael Pollan‘s stunningly simple advice to “Eat food. Not too much. Mostly plants.”), to limit “empty calories” from simple carbohydrates like sugar, to eat a variety of vegetables and fruits, to choose low calorie density foods that are more filling, to limit meat intake, to limit salt, and to keep looking for behavioral and environmental ways to change our calories-in/calories-out balance.</i><p>Ummm, why does the precautionary principle state that we should avoid Diet X (Mediterranean Inuit, Vegetarian,...), rather than Diet Y?<p>Doesn't the precautionary principle really say that nothing should <i>ever</i> change, since we can always gather more data to further remove risk? (Except, of course, the things the speaker really wants to change, in which case the principle won't be invoked.)