Diets Heavy in ‘Ultra-Processed’ Foods Could Harm the Brain


By Steven Reinberg
HealthDay Reporter

THURSDAY, July 28, 2022 (HealthDay Information) — Consuming plenty of ultra-processed meals might dramatically enhance your danger for dementia, in keeping with a brand new examine by researchers in China.

Extremely-processed meals are excessive in sugar, fat and salt, however low in protein and fiber. Sodas, salty and sugary snacks and desserts, ice cream, sausage, deep-fried hen, flavored yogurt, ketchup, mayonnaise, packaged bread and flavored cereals are all examples.

Changing these meals with more healthy alternate options might decrease the chances for dementia by 19%, the study discovered.

“These outcomes imply that it is very important inform customers about these associations, implement actions concentrating on product reformulation, and talk to restrict the proportion of ultra-processed meals within the weight-reduction plan and [instead] promote the consumption of unprocessed or minimally processed meals like contemporary greens and fruits as a substitute,” mentioned lead researcher Huiping Li, from the Faculty of Public Well being at Tianjin Medical College.

This examine would not show that consuming ultra-processed meals will increase the chance of dementia, solely that there appears to be a hyperlink.

Dr. Sam Gandy, director of the Mount Sinai Heart for Cognitive Well being in New York Metropolis, reviewed the findings.

“That is according to the rising physique of proof indicating {that a} heart-healthy weight-reduction plan and life-style is one of the simplest ways for everybody to modulate their danger for dementia,” Gandy mentioned. “The principle novelty right here is the give attention to the dangers of ultra-processed meals slightly than on the advantages of heart-healthy meals.”

For the examine, Li’s staff collected information on greater than 72,000 individuals listed within the UK Biobank, a big database of well being info of individuals in the UK. On the outset, individuals had been age 55 and older and none had dementia. Over a median 10 years, 518 individuals developed dementia.

Researchers in contrast 18,000 individuals whose diets included little processed meals with a like quantity who ate a number of it.

Amongst individuals who ate the least quantity of processed meals (about 8 ounces a day), 100 developed dementia, in comparison with 150 of those that ate probably the most (about 28-29 ounces a day). The examine thought of one serving measurement of pizza or fish sticks to be simply over 5 ounces.

Drinks, sugary merchandise and ultra-processed dairy had been the primary contributors to ultra-processed meals consumption.

Li’s group estimated that substituting 10% of ultra-processed meals with unprocessed or minimally processed meals corresponding to contemporary fruit, greens, legumes, milk and meat, might decrease dementia (however not Alzheimer’s) danger by 19%.

Li mentioned simple modifications in meals selections could make a giant distinction.

“The small and manageable dietary modifications, corresponding to rising the quantity of unprocessed or minimally processed meals by solely 2 ounces a day [about half an apple, a serving of corn, or a bowl of bran cereal], and concurrently lowering ultra-processed meals consumption by 2 ounces a day [about a chocolate bar or a serving of bacon], could also be related to 3% decreased danger of dementia,” Li mentioned.

Samantha Heller, a senior medical nutritionist at NYU Langone Well being in New York Metropolis, mentioned it is lengthy been recognized that ultra-processed meals enhance the chances of creating a number of power circumstances. They embrace coronary heart illness, sure cancers, type 2 diabetes and obesity.

“Whereas the precise trigger is unknown, it’s not shocking that the sort of dietary sample is related to an elevated danger of dementia,” she mentioned. “Extremely-processed meals are each biochemically designed and marketed to extend cravings and want for these meals, and in lots of households crowd out more healthy choices corresponding to fruits, greens, legumes and whole grains.”

The poor nutrient high quality of ultra-processed meals — that are excessive in salt, sugar and saturated fat, and low in fiber — is a recipe for poor well being each bodily and mentally, Heller mentioned.

“Dodging dementia is one other nice cause to begin incorporating extra plant meals, much less ultra-processed meals and animal meals, into our diets,” she mentioned.

Switches will be as simple as changing sugary cereal with a whole-grain cereal like shredded wheat or oatmeal, or topping pizza with salad or mushrooms and spinach, as a substitute of pepperoni and sausage, Heller mentioned.

Or, she advised, strive falafel in a complete wheat pita with chopped tomatoes and cucumbers as a substitute of a ham sandwich, or lentil soup and a facet salad as a substitute of a cheeseburger.

“Each meal is a chance to make a wholesome alternative,” Heller mentioned.

Preserving the kitchen stocked with wholesome meals, like canned or dried beans, entire grains like quinoa or brown rice, peanut or almond butter, path combine and frozen greens, makes it simpler to throw collectively meals which are wealthy in fiber and vitamins, she mentioned.

“Studying new methods of meals prep and meal concepts would possibly really feel daunting at first however there are many free recipes and assets on-line to show to for steerage,” Heller mentioned. “Anecdotally, I’ve discovered that with my sufferers, as soon as they begin consuming much less ultra-processed meals and extra contemporary meals, the cravings and style for the ultra-processed meals decreases, typically to the purpose the place that bacon, egg and cheese breakfast sandwich would not even style good anymore.”

The findings had been revealed on-line July 27 within the journal Neurology .

In a companion editorial, Boston College researchers Maura Walker and Nicole Spartano questioned the examine’s definition of ultra-processed meals. They identified that preparation strategies can have an effect on the dietary worth of meals, and mentioned that additional examine that’s not depending on individuals’ self-reported consuming habits could be helpful.

“As we purpose to grasp higher the complexities of dietary consumption [processing, timing, mixed meals] we should additionally contemplate that investments in additional high-quality dietary evaluation could also be required,” they wrote.

Extra info

For extra on weight-reduction plan and dementia, go to the U.S. Nationwide Institute on Growing old.

SOURCES: Huiping Li, PhD, Faculty of Public Well being, Tianjin Medical College, Tianjin, China; Sam Gandy, MD, PhD, director, Mount Sinai Heart for Cognitive Well being, New York Metropolis; Samantha Heller, MS, RD, CDN, senior medical nutritionist, NYU Langone Well being, New York Metropolis; Neurology, July 27, 2022, on-line


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