Eat Less Processed Red Meat

Yikes

To examine the risk of dementia, researchers included a group of 133,771 people with an average age of 49 who did not have dementia at the start of the study. They were followed up to 43 years. Of this group, 11,173 people developed dementia. Participants completed a food diary every two to four years, listing what they ate and how often. Researchers defined processed red meat as bacon, hot dogs, sausages, salami, bologna and other processed meat products. They defined unprocessed red meat as beef, pork, lamb and hamburger. A serving of red meat is three ounces, about the size of a deck of cards. Researchers calculated how much red meat participants ate on average per day. For processed red meat, they divided participants into three groups. The low group ate an average of fewer than 0.10 servings per day; the medium group ate between 0.10 and 0.24 servings per day; and the high group, 0.25 or more servings per day. After adjusting for factors such as age, sex and other risk factors for cognitive decline, researchers found that participants in the high group had a 13% higher risk of developing dementia compared to those in the low group. Is Eating More Red Meat Bad for Your Brain?https://www.aan.com/PressRoom/Home/PressRelease/1082

This large study is a collaboration funded by the National Institutes of Health to NYU Langone Health and includes authors from Johns Hopkins University and other U.S. institutions. The new study relies on information gathered from the ongoing Atherosclerosis Risk in Communities Neurocognitive Study (ARIC-NCS), which since 1987 has closely tracked the vascular health and cognitive function of nearly 16,000 participants as they age. ARIC-NCS is also, the researchers say, the longest-followed cohort of African Americans for researching cognition and heart health. Published in the journal Nature Medicine online January 13, the study concludes that from 1987 until 2020, there were 3,252 study participants who were documented as having developed dementia. This translates to an overall lifetime risk for dementia among middle-aged Americans of 42 percent, which is an average of the 35 percent risk in men and the 48 percent risk in women. The excess risk in women was largely due to their lower death rates. United States Dementia Cases Estimated to Double by 2060 https://nyulangone.org/news/united-states-dementia-cases-estimated-double-2060

More Cheese Please

Relative risks (RR) for colorectal cancer were calculated for intakes of all 97 dietary factors, with significant associations found for 17 of them. Calcium intake showed the strongest protective effect, with each additional 300 mg per day – equivalent to a large glass of milk – associated with a 17% reduced RR. Six dairy-related factors associated with calcium – dairy milk, yogurt, riboflavin, magnesium, phosphorus, and potassium intakes – also demonstrated inverse associations with colorectal cancer risk. Dr Sheena Meredith. Dietary Calcium Cuts Colorectal Cancer Risk by 17% – Medscape – 08 January 2025. https://www.medscape.co.uk/viewarticle/dietary-calcium-cuts-colorectal-cancer-risk-17-2025a10000e0?

Citation and links to the original study – Papier, K., Bradbury, K.E., Balkwill, A. et al. Diet-wide analyses for risk of colorectal cancer: prospective study of 12,251 incident cases among 542,778 women in the UK. Nat Commun 16, 375 (2025). https://doi.org/10.1038/s41467-024-55219-5https://rdcu.be/d6G1Q

More on Blue Zones and a Diet You Probably Never Heard Of

Food is another key component of healthy living in blue zones, says Buettner. People there tend to consume unprocessed foods, beans, legumes, fruits, and vegetables—often following traditional recipes that have been passed down through generations. That style of eating is good for heart and cognitive health, says Linda Hershey, MD, PhD, FAAN, professor of neurology at the University of Oklahoma Health Sciences Center in Oklahoma City. “Numerous high-quality studies support the benefits of the MIND, DASH, and Mediterranean diets, which emphasize green leafy vegetables, fruits, beans, nuts, fish, poultry, oil, and whole grains, and discourage fried food, processed meat, snack foods, and sweets,” Dr. Hershey says.

“Blue Zones” Author Dan Buettner Shares the Secrets to a Long and Healthy Life — https://www.brainandlife.org/articles/author-dan-buettner-shares-secrets-to-long-healthy-life

Just Another Diet You Probably Never Heard Of

Researchers used the portfolio diet score to rank the participants’ consumption of plant proteins, nuts and seeds, viscous fiber, phytosterols and plant sources of monounsaturated fatty acids. After up to 30 years of follow-up, those with the highest portfolio diet score had a 14% lower risk of coronary heart disease and stroke compared to those with the lowest score. The findings were published Wednesday in the American Heart Association journal Circulation.

“We’re always looking at ways to reduce the risk of heart disease, and one effective way to do that is to lower blood cholesterol levels, particularly LDL cholesterol,” said Dr. Kristina Petersen, an associate professor of nutritional sciences at Penn State in University Park, Pennsylvania.

Petersen, who was not involved in the research, is well-versed in how diets can affect heart health. She co-authored an AHA scientific statement published in April that scored 10 popular diets for their heart-health benefits. The Dietary Approaches to Stop Hypertension – or DASH – diet was the only eating pattern to get a perfect score, with the Mediterranean and pescetarian diets rounding out the top three. The portfolio diet was excluded from the assessment “because it’s not particularly common,” she said.

Ever heard of the portfolio diet? — https://www.heart.org/en/news/2023/10/25/ever-heard-of-the-portfolio-diet-it-may-lower-risk-for-heart-disease-and-stroke