I've stopped taking seriously any news about a healthy lifestyle, because it's ridiculous - one day you read that something is good for you, just to read the next day that it's actually bad for you. I'll trust my common sense and do what makes me feel good.
Good heuristic. I've started to only trust research results that have very high confidence in their results and which is peer-reviewed, e.g. nut consumption cause towards life span [1].