I've been trying to look up information on the internet and in real life for proper nutrition, but every article, ebook, personal trainers and enthusiasts seem to have completely different opinions on what constitutes a proper nutrition. A lot of the information around it is based around marketing which leaves me clueless as to where I can find the right information, and more importantly how do I know that the information is correct?
One of the things I want to know is does a proper nutrition depend on what sport you do, and in particular how should my nutrition be for optimizing my badminton performance? Should this follow a similar nutrition scheme as for weight lifting? (I actually do multiple sports as well as weight lifting, but focus is mainly on badminton)