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Ultra-processed foods now comprise 2/3 of calories in children and teen diets.
Ultra-processed foods now comprise 2/3 of calories in children and teen diets. The calories that children and adolescents consumed from ultra-processed foods jumped from 61% to 67% of total caloric intake from 1999 to 2018, according to a new study from researchers at the Friedman School of Nutrition Science & Policy at Tufts University. In JAMA, published August 10, 2021, the study analyzed dietary intake from 33,795 children and adolescents nationwide. "Some whole grain breads and dairy foods are ultraprocessed, and they're healthier than other ultraprocessed foods. Processing can keep food fresher longer, allows for food fortification and enrichment, and enhances consumer convenience," said senior and corresponding author Fang Fang Zhang, a nutrition epidemiologist at the Friedman School. "But many ultraprocessed foods are less healthy, with more sugar and salt, and less fiber, than unprocessed and minimally processed foods, and the increase in their consump
A new study offers insight into how resistance training burns fat.
A new study offers insight into how resistance training burns fat. Findings from a new University of Kentucky College of Medicine and College of Health Sciences study add to growing evidence that resistance exercise has unique benefits for fat loss. The Department of Physiology and Center for Muscle Biology study published in the FASEB Journal found that resistance-like exercise regulates fat cell metabolism at a molecular level. The study results in mice and humans show that in response to mechanical loading, muscle cells release extracellular vesicles that give fat cells instructions to enter fat-burning mode. Extracellular vesicles were initially understood as a way for cells to selectively eliminate proteins, lipids, and RNA. Recently, scientists discovered that they also play a role in intercellular communication. The study adds a new dimension to how skeletal muscle communicates with other tissues using extracellular vesicles, says John McCarthy, Ph.D. study author and associ
Diabetes drugs may reduce the risk of Alzheimer’s.
Diabetes drugs may reduce the risk of Alzheimer’s. The study finds people taking the drugs have fewer biomarkers, slower cognitive decline. People taking certain drugs to lower blood sugar for type 2 diabetes had less amyloid in the brain, a biomarker of Alzheimer's disease compared to people with type 2 diabetes who are not taking the drugs and those without diabetes. The new study, published in the August 11, 2021, online issue of Neurology , the medical journal of the American Academy of Neurology, also found people taking these drugs, called dipeptidyl peptidase-4 inhibitors, showed slower cognitive decline than people in the other two groups. In people with type 2 diabetes, the body no longer efficiently uses insulin to control blood sugar. Dipeptidyl peptidase-4 inhibitors, also known as gliptins, can be prescribed when other diabetes drugs do not work. They help control blood sugar when combined with diet and exercise. "People with diabetes have been shown to have
Eating more plant foods may lower heart disease risk in young adults, older women.
Eating more plant foods may lower heart disease risk in young adults, older women. Eating more nutritious, plant-based foods is heart-healthy at any age, according to two research studies published today in the Journal of the American Heart Association , an open-access journal of the American Heart Association. In two separate studies analyzing different healthy plant food consumption measures, researchers found that young adults and postmenopausal women had fewer heart attacks and were less likely to develop cardiovascular disease when they ate more healthy plant foods. The American Heart Association Diet and Lifestyle Recommendations suggest an overall healthy dietary pattern that emphasizes various fruits and vegetables, whole grains, low-fat dairy products, skinless poultry and fish, nuts and legumes, and non-tropical vegetable oils. It also advises limited saturated fat, trans fat, sodium, red meat, sweets, and sugary drinks. One study, titled "A Plant-Centered Diet and Ri