Comida, alimento, alimentación
I see that comida, alimento, and alimentación all means food.

What are the differences, and in what situation are you supposed to use each?

Question

Comida, alimento, alimentación
I see that comida, alimento, and alimentación all means food.

What are the differences, and in what situation are you supposed to use each?

Answer

comida* it's a familiar term (also it's the past participle of the verb "comer")
alimento* it's a concrete noun which means "food" (this term is fomal/neutral)
alimentación* is the abstract noun

Answer

in general you should think about this definitions

comida= something that you can eat
alimento= something that you can eat and nurishes to you
alimentacion= in general, this word refers to the set of food that you often intake as a source of materials to nourish the body

Of course there are exceptions, but you can consider these definitions as a practical rule to understand their meaning in context.

Answer

más informal? no estoy seguro...