We often hear about Britain's obesity crisis but yet many people - particularly the elderly - are suffering because they're not eating enough.
Research shows that one in 10 people over the age of 65 are malnourished or at risk of malnutrition. That's more than a million people. The crisis is costing the NHS billions of pounds.
Charities are trying to raise awareness of the issue. And lunch clubs for the elderly - such as one we visited in Sussex - are tackling the problem head on.
Watch full report below by Derek Johnson...