Whenever you're trying to achieve any body goals, whether you get there or not is dependent on your nutrition habits even more than your training. Thought I'd just make a main thread for nutrition where I will put some general tips and just go through some of the standard approaches for weight loss, weight gain and general healthy eating. I am going to put this out there early, NUTRITION IS NOT BLACK AND WHITE everybody's body responds differently to different things, my goal here is just to provide with as much knowledge and resources as I can and allow you to make up your own mind about what will work for you. Your personal trainer should always be you because nobody knows your body like you do! What I can do is explain to you a bit of the science in relation to energy and nutrient break down.