内容摘要：Craig Jones helps a patient at Basin Pharmacy in Basin, Wyo.. His pharmacy is the key health care access point for the town of about 1,300 people and the surrounding area. (AP Photo/Mike Clark)

Craig Jones helps a patient at Basin Pharmacy in Basin, Wyo.. His pharmacy is the key health care access point for the town of about 1,300 people and the surrounding area. (AP Photo/Mike Clark)

The U.S. Agriculture Department sets nutrition guidelines for the national school lunch and breakfast programs, which serve nearly 30 million students each school day.The nutrition standards are required to meet the federal Dietary Guidelines for Americans, which are reviewed and revised every five years. Since 1985, those guidelines have recommended that Americans older than age 2 consume low-fat or fat-free dairy.

The 2025-2030 dietary guidelines are set for revision this year under a joint effort by USDA and the Department of Health and Human Services. A panel of scientific experts who reviewed evidence regarding milk fat content recommended that the U.S. policy remain the same.changes in the federal nutrition program after the 2010 law have slowed the rise in obesity among U.S. kids — even teenagers, said Deanna Hoelscher, a nutrition expert and researcher at the University of Texas Health Science Center who served on the dietary guidelines committee.“We didn’t find enough definitive evidence to change a policy that’s been in place that has shown good outcomes to date,” Hoelscher said.

Although there was limited evidence that consuming higher-fat dairy rather than lower-fat dairy could benefit very young children, there wasn’t enough evidence to make a conclusion for older kids and teens, she said. There were “substantial concerns” with the consistency, quantity and risk of bias in the existing research, the report concluded.Some nutrition experts point to

suggesting that kids who drink whole milk could be less likely to be overweight or develop obesity than children who drink lower-fat milk. One 2020

suggested that the risk was 40% less for kids who drank whole milk rather than reduced-fat milk, although the study authors noted that the research couldn’t say whether milk consumption was the reason.from about 1,000 prepubertal boys.

It’s impossible to tell if enough stem cells are in each tiny sample to matter. But in 2019, Orwig used preserved testicular tissue from a young male monkey that, in an animal version of IVF, led to the birth of a healthy baby monkey.By 2023, Orwig was ready to reimplant now-grown cancer survivors’ cells when Hsu — not ready to start a family yet but curious about his long-ago study participation — reached out.

“We’re not expecting a miracle result,” cautioned Orwig, whose colleagues transplanted Hsu’s thawed cells in November 2023.this week, Orwig reported the injection, guided by ultrasound to the right spot, was safe and easy to perform. His work has not yet been reviewed by other scientists.