.High energy foods can help people to maintain their weight, but Dr Shaw notes that it is sometimes hard to know what to eat.
Many of her patients eat a lot of soup.
"It's liquid, it goes down easily, it's a prime choice. But, as a dietician, I will often talk to them about the fact that soup is often low in energy, and it's often low in protein.
"So people might be using it as a replacement for a meal, but it's not providing the same nourishment as a meal.'
Other high energy meals such as roasted chicken, or more nutritious soups, are advised.