I'm currently working with a book in which there're some examples of phrases. Here's one of them:
food high in fats and carbohydrates ( body has increased energy needs in cold weather)
I emphasized what's not clear. I was confused by the structure. body is a subject here (it recieves energy from food), and an object as well (body needs energy in cold weather). How is it possible?
increased energy needs
in cold weather.”