Researchers have linked overeating to having memory problems in old age.
US scientists believe that a high calorific intake can double the risk of developing mild cognitive impairment (MCI), which can precede dementia.
The authors are due to present their findings at the American Academy of Neurology’s 64th annual meeting in New Orleans in April.
Dr Marie Janson, of Alzheimer’s Research UK, is eagerly awaiting the release of the full report and any further studies on the matter in future.
“The initial report suggests older peoplewho consume a high number of calories may be at greater risk of developing mild cognitive impairment,” she said.
“It would be interesting to see how many of these people go on to develop dementia in the future, to see if there is link to Alzheimer’s disease.
“We know that age is one of the greatest risk factors for dementia, but adopting a healthy lifestyle, including a balanced diet and regular exercise, is beneficial in protecting against dementia along with a number of other chronic diseases.”