Posts Tagged: nutrition
Raw hunger or thirst usually draws people to buy snacks from vending machines. Healthy options, calorie counts and reminders help consumers make good-sense decisions when they slip in coins or a credit card, according to research by a working group organized under UC's Global Food Initiative and led by the UC Nutrition Policy Institute.
The working group set out to develop guidelines for food service providers at all 10 UC campuses and other UC facilities in stocking and promoting healthy options in their vending machines. They also created a toolkit with step-by-step guidance in making the switch, including everything from early meetings with students, food service and vendors to anticipating and preparing for barriers to implementation.
As part of the project, the Nutrition Policy Institute evaluated data from six UC campuses that show healthy vending options are growing in popularity, which eases concerns about a potential reduction in profit by making vending healthier.
“In 2005, California began introducing policies limiting junk food in vending machines and student stores on K-12 campuses,” said Janice Kao, a researcher at the Nutrition Policy Institute and chair of the working group. “Today's college students are used to having healthy snack options in schools. Customer resistance that some vendors talk about isn't necessarily the case anymore.”
Two UC campuses – UCLA and UC San Francisco – have been early adopters in making healthy vending machine choices available. According to the evaluation, the two locations achieved the goal of having 70% of their beverage vending products fit the “healthy” description. Other UC campuses are working on adding healthy options – with a wide variation in implementation and definition of “healthy.”
The Global Food Initiative working group recommends a higher standard for “healthy” snacks than some campuses and vendors. The key difference is the decision that an item can only be considered “healthy” if the first ingredient is a fruit, vegetable, low-fat dairy, protein or whole grain.
“This guideline means some granola bars cannot be considered a healthy snack,” Kao said.
Even so, the evaluation results showed improvement in the sales of healthy products.
“Campuses that have actively worked on healthy vending saw greater sales of healthy snacks and drinks,” Kao said. “We want to learn from those experiences and develop systemwide standards to provide consistency. With everyone following the same guidelines, there is potential to take advantage of systemwide food procurement economies of scale and contribute to meeting UC's sustainability goals.”
The NPI evaluation compared the greenhouse gas emissions associated with traditional vending and healthy vending. A dramatic difference emerged when comparing candy bar ingredients and healthy snack bar ingredients. Greenhouse gas emissions of candy bar ingredients were estimated to be more than twice as high as healthy snack bar ingredients.
Consumer demand is rising for all things avocado, including oil made from the fruit. Avocado oil is a great source of vitamins, minerals and the type of fats associated with reducing the risk of heart disease, stroke and diabetes. But according to new research from food science experts at the University of California, Davis, the vast majority of avocado oil sold in the U.S. is of poor quality, mislabeled or adulterated with other oils.
In the country's first extensive study of commercial avocado oil quality and purity, UC Davis researchers report that at least 82% of test samples were either stale before expiration date or mixed with other oils. In three cases, bottles labeled as “pure” or “extra virgin” avocado oil contained near 100 percent soybean oil, an oil commonly used in processed foods that's much less expensive to produce.
Testing domestic and imported brands
Wang and Hilary Green, a Ph.D. candidate in Wang's lab, analyzed various chemical parameters of 22 domestic and imported avocado oil samples, which included all the brands they could find in local stores and online. Wang and Green received a $25,000 grant from Dipasa USA, part of the Dipasa Group, a sesame-seed and avocado-oil processor and supplier based in Mexico.
“In addition to testing commercial brands, we also bought avocados and extracted our own oil in the lab, so we would know, chemically, what pure avocado oil looks like,” Wang said.
Test samples included oils of various prices, some labeled extra virgin or refined. Virgin oil is supposed to be extracted from fresh fruit using only mechanical means, and refined oil is processed with heat or chemicals to remove any flaws.
Fifteen of the samples were oxidized before the expiration date. Oil loses its flavor and health benefits when it oxidizes, which happens over time and when exposed to too much light, heat or air. Six samples were mixed with large amounts of other oils, including sunflower, safflower and soybean oil.
Only two brands produced samples that were pure and non-oxidized. Those were Chosen Foods and Marianne's Avocado Oil, both refined avocado oils made in Mexico. Among the virgin grades, CalPure produced in California was pure and fresher than the other samples in the same grade.
A push for standards
Ensuring quality is important for consumers, retailers, producers and people throughout the avocado oil industry. Retailers want to sell quality products, shoppers want to get their money's worth and honest producers want to keep fraudulent and low-quality oil out of the marketplace.
But since avocado oil is relatively new on the scene, the Food and Drug Administration (FDA) has not yet adopted “standards of identity,” which are basic food standards designed to protect consumers from being cheated by inferior products or confused by misleading labels. Over the last 80 years, the FDA has issued standards of identity for hundreds of products, like whiskey, chocolate, juices and mayonnaise. Without standards, the FDA has no means to regulate avocado oil quality and authenticity.
Avocado oil isn't the only product without enforceable standards. Honey, spices and ground coffee are other common examples. Foods that fetch a higher price are especially ripe for manipulating, especially when adulterations can be too subtle to detect outside a lab.
Wang is working to develop faster, better and cheaper chemical methods to detect adulteration so bulk buyers can test avocado oil before selling it. She is also evaluating more samples, performing shelf-life studies to see how time and storage affects quality, and encouraging FDA officials to establish reasonable standards for avocado oil.
Wang has experience collaborating with industry and the FDA. Ten years ago, she analyzed the quality and purity of extra virgin olive oil and discovered that most of what was being sold in the U.S. was actually a much lower grade. Her research sparked a cascade of responses that led California to establish one of the world's most stringent standards for different grades of olive oil. The FDA is working with importers and domestic producers to develop standards of identity for olive oil.
“Consumers seeking the health benefits of avocado oil deserve to get what they think they are buying,” Wang said. “Working together with the industry, we can establish standards and make sure customers are getting high-quality, authentic avocado oil and the companies are competing on a level playing field.”
Tips for consumers
- The flavor of virgin avocado oil can differ by varieties and region. In general, authentic, fresh, virgin avocado oil tastes grassy, buttery and a little bit like mushrooms.
- Virgin avocado oil should be green in color, whereas refined avocado oil is light yellow and almost clear due to pigments removed during refining.
- Even good oil becomes rancid with time. It's important to purchase a reasonable size that can be finished before the oil oxidizes. Store the oil away from light and heat. A cool, dark cabinet is a good choice, rather than next to the stove.
- How do you know if the oil is rancid? It starts to smell stale, sort of like play dough.
- When possible, choose an oil that's closest to the harvest/production time to ensure maximum freshness. The “best before date” is not always a reliable indicator of quality.
Now more than ever, California is full of heroes: front-line workers in our hospitals, farm fields and essential businesses. And even though schools are closed, they are full of heroes, too: teachers implementing distance learning and kitchen workers who have stepped up to the heroic task of providing meals for children in their communities, despite the challenges that have come with the COVID-19 pandemic.
School nutrition professionals continue to provide nutritious food that meets dietary standards, the kitchens provide employment, and the hungry students provide a multi-million dollar market for California's agricultural products.
Researchers at UC Agriculture and Natural Resources's Nutrition Policy Institute received an email earlier this spring with a subject line that simply said, “HELP!!!” Local community groups had learned that some Central Valley school districts would not be providing meals over spring break. Even though that might not be cause for alarm some years, this year it would hurt. In the eight-week period between March 14 and May 14, 2020, the California Employment Development Department processed 4.7 million unemployment benefit claims – nearly seven times more claims than over a two-month period at the height of the 2008 recession. EDD estimates that California unemployment reached nearly 25% by mid-May.
That is why school meals are more important than ever.
On receiving the request for HELP!!!, the Nutrition Policy Institute teamed with a Stanford pediatrician to distill critical information from USDA and the California Department of Education. Connecting with child nutrition professionals throughout the state, they gleaned tips and best practices, and added COVID-19-specific resources from the Community of Practice convened by LunchAssist and the Center for Ecoliteracy. The team produced informational flyers targeted to California school district officials and food service directors:
- Child Hunger Doesn't Take a Spring Break (2-pager)
- Calling all Districts! USDA Summer Meals Can Keep Kids Healthy (4-pager)
The resources provide explanations and resources for operating school meal programs during non-instructional periods through either the Seamless Summer Option (SSO) or the Summer Food Service Program (SFSP).
“I didn't know I would get so much soil today, now I can grow more cucumbers in my room!” said Miss Anita as she placed fresh soil into her plant pottery on Community Planting Day. The Estabrook Place resident was a first-time participant of a new gardening program for older adults hosted by the University of California Cooperative Extension in Alameda County.
The UC Cooperative Extension senior gardening program integrates healthy eating, active living and gardening education. Miss Anita was one of 200 seniors who participated in the gardening and nutrition education program led by Katherine Uhde, a CalFresh Healthy Living, UC community education specialist, in collaboration with the UC Master Gardener Program of Alameda County.
According to the National Institute of Aging, older adults experience high levels of social isolation and loneliness, which lead to an increased risk of chronic conditions such as high blood pressure, depression and obesity. Educational activities that promote a healthy lifestyle and encourage interaction with peers are recommended to prevent these conditions in aging adults.
“We need to be able to address the needs of our greying generation and focus on prevention rather than treatment,” explained Mary Blackburn, UC Cooperative Extension nutrition, family, and consumer sciences advisor, about the benefits of group-based wellness activities for seniors.
The senior gardening program was developed by Blackburn and tested at Palo Vista Gardens Community, an Oakland Housing Authority-managed senior property. It is part of a larger quality of life study on the health of aging adults being conducted at seven Eden Housing sites with CalFresh Healthy Living, UC, which serves diverse populations of people who are eligible for the Supplemental Nutrition Assistance Program, also known as CalFresh food. Through nutrition education and physical activity classes, CalFresh Healthy Living, UC empowers seniors and other underserved Californians to improve their health.
This is the first project that CalFresh Healthy Living, UC partnered on with Eden Housing, a nonprofit provider of affordable housing in Alameda County. Through the collaboration, Eden Housing residents are able learn about nutrition, food safety and gardening concurrently at their living facilities. Residents learned how to grow fresh herbs, including marjoram and basil, while learning the benefits of cooking with them.
In past research, Blackburn found unsafe food handling practices used by over half of the fixed-income seniors and food handlers and caregivers serving seniors surveyed in 10 counties. At the Alameda County location, a UC Master Food Preserver volunteer, trained in Solano County, offers safe food handling classes.
Because the residents speak various languages including Cantonese, Vietnamese, Spanish, and Korean, CalFresh Healthy Living, UC has partnered with the Volunteer Health Interpreters Organization to connect certified, student volunteer translators to assist the participants. This partnership allows UCCE educators to communicate with participants in their native language and allows residents to more easily interact with their neighbors and develop friendships.
To paraphrase the African proverb “It takes a village to raise a child,” it takes a community to meet the needs of people with various physical and mental abilities, cultural backgrounds and life experiences.
On Community Planting Day, every senior resident is smiling as they dig their hands into the dirt to make room for a seed or seedling. Residents who were strangers before the event are exchanging ideas of what they would like to grow, and like Miss Anita, are enthused to grow more vegetables.
To assess the benefits of the gardening program for seniors, Blackburn is working with Lisa Soederberg Miller, director of the Adult Development Lab and professor in the Department of Human Ecology at UC Davis. They hope to share what they learn with others who wish to establish a similar program for seniors in their community.
The University of California is providing a free online course, Healthy Beverages in Early Care & Education, in English and Spanish for child care providers in California. The 30-minute on-demand class is a friendly way to learn about the latest recommendations for healthy beverages for children and help child care providers meet the California Healthy Beverages in Child Care Act (AB 2084) requirements.
- Milk - whenever milk is served, serve only lowfat (1%) milk or nonfat milk to children two years of age or older.
- Juice - limit juice to not more than one serving per day of 100% juice.
- Sweetened Beverages - serve no beverages with added sweeteners, either natural or artificial. Beverages with added sweeteners does not include infant formula or complete balanced nutritional products designed for children.
- Drinking Water - make clean and safe drinking water readily available and accessible for consumption throughout the day.
The training includes videos, short quizzes and activities, and covers topics such as milk, types of fruit juice, drinking water and reading a nutrition label. A professional development certificate will be provided upon completion of the class.
To sign up for the class, visit http://bit.ly/NPIccbevE for English and http://bit.ly/NPIccbevS for Spanish and create an account. Providers outside of California may have similar beverage requirements. And all young children, regardless of licensing or Child and Adult Care Food Program (CACFP) requirements, can benefit from consuming healthy beverages. The course is free for California providers and available for child care providers outside of California for a $15 fee.
This class was developed by the UCSF School of Nursing, California Childcare Health Program in partnership with the University of California Nutrition Policy Institute and Cooperative Extension, with support from a grant by UC Agriculture and Natural Resources.