USA Today via the AAN -
Older people who consumed more than 2,143 calories a day had more than double the risk of a type of memory loss called mild cognitive impairment compared to those who ate fewer than 1,500 calories a day, according to a study being released Sunday by the American Academy of Neurology on its website (aan.com).
The more calories older people consumed, the more likely they were to have mild cognitive impairment, says Yonas Geda, lead author of the study and a neuropsychiatrist at Mayo Clinic in Scottsdale, Ariz.
Other investigators from Australia have shown that excessive calorie intake is associated with a greater risk of mild cognitive impairment, he says.
I am 33 years old, and already have a cognitive impairment. No thank you for this. Thanks.
NEW ORLEANS â New research suggests that consuming between 2,100 and 6,000 calories per day may double the risk of memory loss, or mild cognitive impairment (MCI), among people age 70 and older. The study was released today and will be presented at the American Academy of Neurologyâs 64th Annual Meeting in New Orleans April 21 to April 28, 2012. MCI is the stage between normal memory loss that comes with aging and early Alzheimerâs disease.
âWe observed a dose-response pattern which simply means; the higher the amount of calories consumed each day, the higher the risk of MCI,â said study author Yonas E. Geda, MD, MSc, with the Mayo Clinic in Scottsdale, Arizona and a member of the American Academy of Neurology.
The study involved 1,233 people between the ages of 70 and 89 and free of dementia residing in Olmsted County, Minn. Of those, 163 had MCI. Participants reported the amount of calories they ate or drank in a food questionnaire and were divided into three equal groups based on their daily caloric consumption. One-third of the participants consumed between 600 and 1,526 calories per day, one-third between 1,526 and 2,143 and one-third consumed between 2,143 and 6,000 calories per day.
The odds of having MCI more than doubled for those in the highest calorie-consuming group compared to those in the lowest calorie-consuming group. The results were the same after adjusting for history of stroke, diabetes, amount of education, and other factors that can affect risk of memory loss. There was no significant difference in risk for the middle group.
âCutting calories and eating foods that make up a healthy diet may be a simpler way to prevent memory loss as we age,â said Geda.
The co-authors of the study include Ronald C. Petersen, MD, Fellow of the American Academy of Neurology, and other investigators of the Mayo Clinic Study of Aging in Rochester, Minn.
Learn more about Alzheimerâs disease at http://www.aan.com/patients.
The study was supported by the National Institutes of Health, the Robert Wood Johnson Foundation and the Robert H. and Clarice Smith and Abigail van Buren Alzheimer's Disease Research Program.
The American Academy of Neurology, an association of more than 25,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as stroke, Alzheimerâs disease, epilepsy, Parkinsonâs disease and multiple sclerosis.