What is the minimum effective period over which one should try a new dietary plan, before reaching conclusions on its effectiveness?
Two weeks. But don't draw conclusions based on, for example, weight even if 'looking like you have lost weight' is actually your goal.
This question could be generalized to other health issues where self-experimentation is appropriate.
It could... but the more generalized the answer the less useful it is going to be. Specifics are kind of the important thing here!
Often, there are questions you want to know the answers to. You want other people's opinions, because knowing the answer isn't worth the time you'd have to spend to find it, or you're unsure whether your answer is right.
LW seems like a good place to ask these questions because the people here are pretty rational. So, in this thread: You post a top-level comment with some question. Other people reply to your comment with their answers. You upvote answers that you agree with and questions whose answers you'd like to know.
A few (mostly obvious) guidelines:
For questions:
For answers:
This thread is primarily for getting the hivemind's opinions on things, not for debating probabilities of propositions. Debating is also okay, though, especially since it will help question-posters to make up their minds.
Don't be too squeamish about breaking the question-answer format.
This is a followup to my comment in the open thread.