Question

Can the amount the calories you eat effect your mood????

Answer 1

it can

Answer 2

Yes. The source of those calories can as well. For instance, mammals love near pure sugar in any form (glucose sucrose etc). It does not require much alteration before being used to generate energy. This is probably why humans have such a near universal love of sugary items and feel happy when the eat them. Of course now that we are not, as a species, constantly risking starvation it is more harmful.