Hey your very welcome,
Simplifying my diet and then bringing in one food at a time helped me to realise what I needed and what was not great for me. Its very freeing to not "need" so much also.
Ivor Cummings on Youtube is good if you just want the biological facts without any agendas pushing this lifestyle or that. Food is hugely helpful, if you can get it working For you.

Cheers!