Luscious and refreshing with chunks of frosty berries, this fruit- and EVOO-infused dessert is an ice cream lover’s dream. Ice cream isn’t complicated to make with a machine to churn it for you. If you have a KitchenAid stand mixer, buying its ice cream attachment is a cost-effective option; the bowl, as with other brands that don’t have a built-it compressor, needs 24 hours in the freezer before use.
Ingredients
2 cups heavy cream
1 cup half-and-half
3/4 cup sugar, divided use
1/4 teaspoon coarse salt
2 teaspoons vanilla extract
2 cups mixed blueberries, raspberries, and strawberries, plus more for garnish if desired
2 tablespoons extra virgin olive oil
Directions
Step 1
Make the ice cream base. Heat the heavy cream and half-and-half in a saucepan over medium heat until it reaches a simmer and forms a skin on the surface. Off the heat, whisk in 1/2 cup sugar, the salt, and the vanilla, whisking until the sugar is fully incorporated. Let the base come to room temperature, then refrigerate until cold (it can be made up to 3 days in advance).
Step 2
Just before you’re ready to make the ice cream, hull the strawberries and cut them into 1/2-inch dice. Add them to a bowl with the rest of the berries and the remaining 1/4 cup sugar. Toss well, then use a potato masher or pestle to mash the fruit just a bit. Fold in the olive oil and set aside.
Step 3
Give the ice cream base a quick whisk, pour into your ice cream maker, and turn on the machine. Once the ice cream holds its shape, add in the berries with all their juices and finish churning. You can enjoy the ice cream as a soft serve after churning or, for a firmer consistency, transfer to a freezer-safe container and place in the freezer for 2 hours or more. Before serving, garnish portions with more berries if desired.
Cheesy Onion Wraps Recipe, Spotlight on Vidalia Onions, Storing Onions, Are You Getting Enough B12 and The Benefits of 30 Minutes of Weekly Exercise
Sandwich wraps are handy alternatives to bread but can lack flavor. My cheesy onion wraps are so good you’ll be tempted to eat them right out of the pan (be sure to let them cool off first!). This issue of the newsletter looks at new research on the all-important vitamin B12 and why many people could be short. And for those who have a hard time fitting in exercise, I’m including details of a report that suggests 30 minutes per week rather than per day can still be helpful.
This makes a satisfying lunch and a great appetizer for your next get-together. I love the tangy, fruity taste of sumac, a spice that’s finally getting the attention it deserves. If you’ve got the grill on, drizzle olive oil on the bread and toast over the coals.
Ingredients
2 tablespoons extra virgin olive oil, plus more for drizzling
1/8 teaspoon peperoncino (Italian crushed red pepper flakes)
4 ounces each pitted Castelvetrano and Kalamata olives
2 tablespoons chopped fresh flat-leaf parsley
8 baguette or crusty whole-grain bread slices
8 ounces goat cheese at room temperature
1/4 cup chopped walnuts
Directions
Step 1
In a medium bowl, whisk together the olive oil, lemon zest and juice, garlic, sumac, salt, pepper, and peperoncino. Coarsely chop the olives and add to the bowl along with the parsley; let marinate for 30 minutes.
Step 2
When ready to assemble, toast the bread. Spread each slice with equal amounts of goat cheese, then top with the walnuts and the olive mixture. Drizzle with olive oil and serve.
Yields 4 lunch or 8 appetizer servings
Healthy Ingredient Spotlight
Vidalia Onions
Grown in a limited area in Georgia, these onions are super sweet, thanks to their low sulfur content, which makes them less pungent and tear-inducing than other onion varieties. Their mild flavor profile means you can enjoy them raw, but they’re equally delicious cooked.
These onions are a good source of vitamin C, B6, and folate, potassium and manganese as well as quercetin, an antioxidant known for its anti-inflammatory properties, and fiber. They’re available from April to August; look for their trademark logo as well as their flatter shape.
Quick Kitchen Nugget
Storing Onions
Vidalias have a high moisture content, and some experts recommend wrapping each one in a paper towel and storing them in the crisper drawer of your fridge. If you’re going to be using them in a few days, you can keep them on a rack in a cool, dry cabinet. But always keep any onions far away from potatoes because the ethylene gas produced by onions will cause your spuds to spoil prematurely.
For Your Best Health
Are You Getting Enough B12?
Vitamin B12 is essential for helping your body make DNA, red blood cells, and healthy nerve tissue. While there are guidelines for daily intake, that amount may not actually be enough to protect the brain in later years. Researchers at the University of California San Francisco (UCSF) found that older adults with “normal” but lower levels of active B12 showed signs of slower thinking, delayed visual processing, and more damage to the brain’s white matter — the communication highways that help different brain regions work together. The findings raise the possibility that some people may be told their B12 status is fine while their brains are already showing early signs of strain.
For the study, published in Annals of Neurology, researchers enrolled 231 healthy older adults through the Brain Aging Network for Cognitive Health (BrANCH) study at UCSF. The participants had an average age of 71, and none had dementia or mild cognitive impairment. Their average blood B12 level was 414.8 pmol/L, far above the US minimum cutoff of 148 pmol/L. Instead of relying only on total B12, the researchers focused on the biologically active form of the vitamin, which may better reflect how much B12 the body can actually use. The study focused on older adults, a group that may be especially sensitive to lower B12 because absorption can become less efficient with age. Some medications, digestive conditions, and diets low in animal-based foods can also increase the risk of low B12.
After adjusting for age, sex, education, and cardiovascular risk factors, the team found that participants with lower active B12 had slower processing speed on cognitive tests. The effect was stronger with older age. They also had delayed responses to visual stimuli, pointing to slower visual processing and reduced brain signaling efficiency.
MRI scans added another warning sign. Participants with lower active B12 had a higher volume of white matter lesions, which are areas of brain injury that have been linked to cognitive decline, dementia, and stroke risk. Even in this relatively healthy group, lower levels of active B12 were linked to slower thinking, slower visual processing, and more visible injury in the brain’s white matter.
The work was led by senior author Ari J. Green, MD, of the UCSF Departments of Neurology and Ophthalmology and the Weill Institute for Neurosciences. Dr. Green and his colleagues said the results call attention to a possible weakness in current B12 guidelines. The minimum threshold used to define deficiency may not capture early functional changes in the nervous system.
“Previous studies that defined healthy amounts of B12 may have missed subtle functional manifestations of high or low levels that can affect people without causing overt symptoms,” said Dr. Green, noting that clear deficiencies of the vitamin are commonly associated with a type of anemia. “Revisiting the definition of B12 deficiency to incorporate functional biomarkers could lead to earlier intervention and prevention of cognitive decline.”
The findings suggest that low but technically normal B12 could have broader effects than previously recognized. These levels could “impact cognition to a greater extent than what we previously thought and may affect a much larger proportion of the population than we realize,” said co-first author Alexandra Beaudry-Richard, MSc, who is currently completing her doctorate in research and medicine at the UCSF Department of Neurology and the Department of Microbiology and Immunology at the University of Ottawa.
“In addition to redefining B12 deficiency, clinicians should consider supplementation in older patients with neurological symptoms even if their levels are within normal limits,” she said. “Ultimately, we need to invest in more research about the underlying biology of B12 insufficiency, since it may be a preventable cause of cognitive decline.”
The UCSF findings do not prove that lower active B12 directly causes cognitive decline, and they do not mean every older adult should begin taking supplements without medical guidance. They do, however, suggest that the current definition of B12 deficiency may be too blunt for brain health.
Fitness Flash
The Benefits of 30 Minutes of Weekly Exercise
Current health recommendations suggest exercising for at least 2.5 hours each week, with 5 hours considered even better. For many people, that target can seem overwhelming. Here’s music to their ears: According to researchers at the Norwegian University of Science and Technology (NTNU), you may not need hours at the gym to boost your health after all. Studies from the past two decades suggest that just 30 minutes of high-intensity exercise per week can improve health. That works out to roughly 4.3 minutes per day or about 10 minutes every other day.
The important part is intensity. The activity needs to be strenuous enough to leave you noticeably out of breath. If you use a heart rate monitor, researchers say your heart rate should reach about 85 percent of your maximum. However, special equipment is not necessary. A simple way to judge intensity is by how difficult it is to talk. You should still be able to speak in short sentences, but you should not be able to sing or carry on a continuous conversation comfortably.
“The biggest reported challenge regarding exercise is lack of time. But with intense, short workouts, this is no longer a valid excuse,” said Ulrik Wisløff, a professor at NTNU and head of CERG, a research group that studies the health effects of exercise. Researchers say even a small amount of high-intensity activity can improve cardiovascular fitness, which plays a major role in long-term health. “Cardiovascular fitness is the best indicator of current and future health. Good cardio fitness reduces the risk of over 30 lifestyle diseases as well as premature death by 40 to 50 percent,” explained Wisløff.
CERG first documented these effects in a 2006 study that analyzed health information from 60,000 people. Since then, additional large studies from Norway and other countries have reported similar findings.
Rather than doing one intense 30-minute workout each week, it’s best to spread out the sessions, said Wisløff. Blood pressure and blood sugar control improve for 24 to 48 hours after a workout that pushes you hard enough to become breathless for several minutes. Because of these short-term benefits, divide exercise across two to four days per week whenever possible.
That does not necessarily mean sprinting at full speed or using the highest resistance setting on an exercise bike. “Your own personal fitness level determines what gives you a high heart rate,” Wisløff said. “If you are not very fit, simply taking a brisk walk may be enough. Having said that, you need to walk fast enough that you get quite out of breath. You can then increase the intensity as your fitness improves. Short intervals are effective. For example, this could be bursts of 45 seconds with 15-second breaks. Or like in Tabata workouts, with intense 20-second intervals interspersed with 10-second breaks. Otherwise, 4×4 intervals are recognized as highly effective for increasing oxygen uptake.”
“Fitness is something you have to maintain. Cardio fitness and strength decline quickly when not maintained, especially as you get older,” said Atefe R. Tari, PhD, a researcher and head of CERG’s initiative on exercise and brain health. Strength training is also considered important, particularly for middle-aged and older adults. “We know that strength training is important, especially for middle-aged and older adults. There is limited research on how strength training affects lifespan, but a HUNT study exploring this is due to be published soon,” said Wisløff. “Physical health and brain health are closely linked, and cardio fitness is key here as well. Exercise leads to the formation of new brain cells,” added Dr. Tari.
Wisløff and Tari are now encouraging Norwegian health authorities to revise the country’s official exercise recommendations, arguing that exercise intensity should receive greater emphasis.
Looking for a grain-free wrap to replace pitas or tortillas? This sheet pan hack is so flavorful you may never go back! It gets its goodness from sweet onions and salty Parmigiano-Reggiano. You can also cut the cooked sheet into shapes to top burgers or enjoy on their own as snacks. Bookmark this one for next autumn: Cut into rounds to make delicious toppers for French onion soup (use any sweet onion when Vidalias are out of season).
Ingredients
8 ounces Parmigiano-Reggiano
1 large Vidalia onion, about 16 ounces
Extra virgin olive oil
1/2 teaspoon salt
2 teaspoons garlic powder
Directions
Step 1
Preheat your oven to 400°F. Line a rimmed sheet pan with heat-resistant parchment paper. Shred the cheese and the onion using the medium shredding blade of a food processor or the large hole side of a hand grater (there’s no need to rinse the grater between the cheese and the onion). Toss the cheese and onions well, then spread out in an even layer on the prepared pan. Drizzle generously with olive oil and sprinkle with the salt and garlic powder. Bake for 20 minutes or until the onions and cheese have browned. It will be bubbly when you take it out of the oven.
Step 2
Allow to cool to room temperature to crisp up, about 20 minutes. Then cut into thirds for sandwich wraps and fill as desired.
Olive Toast Recipe, Spotlight on Castelvetrano Olives, Storing Bread, Weight Loss Tweaks and Walking and Weight Loss
Move over, avocado. There’s a new toasty trend taking shape and it starts with olives. The best part? You can get creative with toppings—yes, even add a layer of avo if you like. I’m also sharing new findings about effective weight loss and how to keep it off.
This makes a satisfying lunch and a great appetizer for your next get-together. I love the tangy, fruity taste of sumac, a spice that’s finally getting the attention it deserves. If you’ve got the grill on, drizzle olive oil on the bread and toast over the coals.
Ingredients
2 tablespoons extra virgin olive oil, plus more for drizzling
1/8 teaspoon peperoncino (Italian crushed red pepper flakes)
4 ounces each pitted Castelvetrano and Kalamata olives
2 tablespoons chopped fresh flat-leaf parsley
8 baguette or crusty whole-grain bread slices
8 ounces goat cheese at room temperature
1/4 cup chopped walnuts
Directions
Step 1
In a medium bowl, whisk together the olive oil, lemon zest and juice, garlic, sumac, salt, pepper, and peperoncino. Coarsely chop the olives and add to the bowl along with the parsley; let marinate for 30 minutes.
Step 2
When ready to assemble, toast the bread. Spread each slice with equal amounts of goat cheese, then top with the walnuts and the olive mixture. Drizzle with olive oil and serve.
Yields 4 lunch or 8 appetizer servings
Healthy Ingredient Spotlight
Castelvetrano Olives
If you’re someone who adores fresh-pressed olive oil yet shies away from olives, Castelvetranos are for you. Known as Nocellara del Belice, this varietal from the Valle del Belice region of Sicily is known for its buttery flavor and smooth skin and is a great source of healthy monounsaturated fats.
Quick Kitchen Nugget
Storing Bread
Grandma’s bread box was a great way to keep a loaf fresh. The modern-day innovation is a linen bread bag, available for crusty round loaves or baguettes. The fabric helps keep the crust firm without drying out the insides…but only for 2 or 3 days. If you need longer storage, slice the loaf and freeze.
For Your Best Health
Weight Loss Tweaks
A study led by the Barcelona Institute for Global Health (ISGlobal) and published in the International Journal of Behavioral Nutrition and Physical Activity found that two habits are linked to a lower body mass index (BMI) over time: extending the overnight fasting period and eating breakfast early. Scientists think this is because eating earlier aligns better with the body’s internal clock. On the other hand, skipping breakfast as part of intermittent fasting didn’t offer the same advantage and may even be tied to unhealthy habits.
The findings are based on data from more than 7,000 adults between the ages of 40 and 65 who are part of the GCAT | Genomes for Life cohort, led by the Germans Trias i Pujol Research Institute (IGTP) in Barcelona. In 2018, participants provided details about their height, weight, meal timing, lifestyle habits, and socioeconomic background through questionnaires. Five years later, in 2023, more than 3,000 of these individuals returned for follow-up assessments. Researchers recorded updated measurements and collected new survey data, allowing them to track changes and identify patterns over time.
“Our results, in line with other recent studies, suggest that extending the overnight fast could help maintain a healthy weight if accompanied by an early dinner and an early breakfast. We think this may be because eating earlier in the day is more in line with circadian rhythms and allows for better calorie burning and appetite regulation, which can help maintain a healthy weight. However, it is too soon to draw definitive conclusions, so recommendations will have to wait for more robust evidence,” explained Luciana Pons-Muzzo, MPH, researcher at ISGlobal at the time of the study and currently at IESE Business School.
When researchers compared results by gender, they found notable differences. Women generally had lower BMI, followed the Mediterranean diet more closely, and were less likely to drink alcohol. At the same time, they reported poorer mental health and were more often responsible for household or family supervision.
Using a method called cluster analysis, the team grouped participants with similar characteristics. One small group of men stood out. These individuals typically ate their first meal after 2 pm and fasted for about 17 hours. Compared to others, they were more likely to smoke and drink alcohol, less physically active, and less likely to follow the Mediterranean diet. They also tended to have lower levels of education and higher rates of unemployment. Researchers did not observe a similar pattern among women.
“There are different ways of practicing what is known as intermittent fasting and our study relates to one of them, which is overnight fasting. What we observed in a subgroup of men who do intermittent fasting by skipping breakfast is that this practice has no effect on body weight. Other intervention studies in participants with obesity have shown that this tactic is no more effective than reducing calorie intake for reducing body weight in the long term,” said Camille Lassale, PhD, ISGlobal researcher and senior co-author of the study.
“Our research is part of an emerging field of research known as ‘chrononutrition’, which focuses not only on analyzing what we eat, but also the times of day and the number of times we eat,” says Anna Palomar-Cros, PhD, researcher at ISGlobal at the time of the study and currently at IDIAP Jordi Gol. “At the basis of this research is the knowledge that unusual food intake patterns can conflict with the circadian system, the set of internal clocks that regulate the cycles of night and day and the physiological processes that must accompany them.”
This study builds on earlier ISGlobal research in chrononutrition, which found that eating dinner and breakfast earlier in the day is associated with a lower risk of cardiovascular disease and type 2 diabetes, reinforcing the idea that meal timing plays a meaningful role in long-term health.
Fitness Flash
Walking and Weight Loss
Many weight loss programs encourage people to walk more each day, but there has been limited evidence showing whether increasing daily steps actually helps people lose weight while dieting. It’s also unclear whether walking more can help people maintain weight loss over time and, if so, what step count may be most effective.
“The most important—and greatest—challenge when treating obesity is preventing weight regain,” explained Professor Marwan El Ghoch, MD, of the Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy. “Around 80% of people with overweight or obesity who initially lose weight tend to put some or all of it back on again within three to five years. The identification of a strategy that would solve this problem and help people maintain their new weight would be of huge clinical value.”
To find such a strategy, Dr. El Ghoch and colleagues from Italy and Lebanon carried out a systematic review and meta-analysis of previous studies focused on walking and weight management and presented their soon-to-be-published analysis at this year’s European Congress on Obesity in Istanbul, Turkey.
The researchers reviewed 18 randomized controlled trials. Of those, 14 studies involving 3,758 adults were included in the final meta-analysis. Participants had an average age of 53 years and an average BMI of 31 kg/m2. The studies included people from several countries, including the UK, US, Australia, and Japan. The trials compared 1,987 participants enrolled in lifestyle modification (LSM) programs with 1,771 people in control groups who were either dieting without additional support or receiving no treatment.
The lifestyle modification programs combined dietary guidance with recommendations to walk more and track daily steps. These programs included an initial weight loss phase followed by a maintenance phase designed to help participants keep the weight off long term. Researchers measured participants’ daily step counts at the beginning of the studies, after the weight loss phase (average duration of 7.9 months), and after the maintenance phase (average duration of 10.3 months). At the start of the trials, both groups had similar activity levels. Participants in the LSM group averaged 7,280 steps per day, while those in the control group averaged 7,180 steps daily.
The control group did not significantly increase daily walking and did not experience weight loss during the studies. Participants in the LSM programs, however, increased their daily step count to an average of 8,454 steps by the end of the weight loss phase. During that time, they lost an average of 4.39% of their body weight, equal to roughly 4 kg.
Participants largely maintained their higher activity levels throughout the maintenance phase, averaging 8,241 steps per day by the end of the studies. They also kept off most of the weight they had lost, with an average long-term weight loss of 3.28%, or about 3 kg. Further analysis revealed a clear connection between higher daily step counts and reduced weight regain. Researchers found that people who increased their steps during the weight loss phase and continued that level of activity afterward were more successful at maintaining their weight loss.
Interestingly, walking more was not linked to greater weight loss during the initial dieting phase. Researchers believe this may be because factors such as calorie reduction have a stronger effect on short-term weight loss.
Dr. El Ghoch said the findings show that lifestyle modification programs can support meaningful long-term weight loss. “Participants should be always encouraged to increase their step count to approximately 8,500 a day during the weight loss phase and sustain this level of physical activity during the maintenance phase to help prevent them from regaining weight,” he said. “Increasing the number of steps walked to 8,500 each day is a simple and affordable strategy to prevent weight regain.”
