Intermittent fasting: what it does, and what it does not
It works about as well as any other way of eating less. The interesting question is whether it suits you, not whether it is magic.
Do you need a multivitamin?
For most people eating a reasonable diet, the honest answer is no. Here is who genuinely benefits, and why the rest of us keep buying them anyway.
Fibre is the single best-evidenced change most people can make to their diet
Most adults eat about half the fibre they should. Fixing that has better evidence behind it than almost anything else on a supplement shelf.