We're aiming to help everyone to spot the symptoms in older friends and relatives, and offer practical ways to help.
Malnourishment and dehydration cause serious health problems - including infections, depression and falls.
Most elderly people affected still live in their own homes, and nationally more than 3 million are at risk.
It's also a common cause of admission to hospitals and care homes, and costs the taxpayer billions of pounds a year.
Our booklet, How to eat well: a guide for older people who are underweight is attached to this page.
Contact us
Contact us if you're concerned about eating well: