Baked summer squash strips are perfect for making finger food roll-ups. For this recipe, I’m filling them with the ingredients of a classic Caprese salad, one of my favorite seasonal dishes. Try to choose squash that are the same thickness from tip to base.
Ingredients
Two 6- or 7-inch yellow summer squash or zucchinis
Extra virgin olive oil
Coarse sea salt
8 ounces fresh mozzarella
12 cherry tomatoes, more as needed, halved
Basil leaves, to taste
Garlic chives (optional)
Balsamic vinegar of Modena
Freshly ground black pepper, to taste
Directions
Step 1
Preheat your oven to 375°F. Use the straight blade of a box grater or a mandoline to slice the squash into lengths about 1/8-inch thick. Each squash should yield about 8 slices.
Step 2
Arrange the squash slices on a rimmed sheet pan lined with parchment paper and lightly brush with olive oil, then sprinkle with salt. Bake for about 15 minutes until soft but not browned. Remove the pan from the oven and let cool.
Step 3
Cut the mozzarella into thin lengths; they should be about the width of each squash slice and a third as long. Center a piece of mozzarella on a squash length, top with a cherry tomato half, pressing it in to anchor it, and then with a basil leaf. Roll up the squash and tie it with a chive or secure it with a toothpick. Arrange the bites on a serving dish and drizzle with balsamic and more olive oil. Sprinkle on salt and black pepper to taste.
Very Berry Chocolate Bars Recipe, Spotlight on Dark Chocolate, The Differences Between Dark and Milk Chocolate, Melting Chocolate in the Microwave, Outdoor Exercise and Air Quality
Healthy foods aren’t only about whole grains and vegetables. Some can satisfy a sweet tooth, too. That’s because foods like berries and dark chocolate have a wide category of nutrients called flavonoids. Read about newly discovered benefits in the first research piece I’m sharing…then indulge in one of these chocolate bars! With summer upon us, it can be enjoyable to exercise outdoors, but air quality could be a concern. The tips below will help you make smart choices.
Olive oil enhances dark chocolate by adding a fresh, slightly herbal taste. Raspberries and pistachios add layers of flavor and texture. Tip: Blueberries and almonds are another great combo.
Ingredients
3 ounces raspberries
8 ounces dark chocolate discs or pieces, preferably 70% cacao
2 tablespoons extra virgin olive oil
1 ounce shelled, unsalted pistachios
Directions
Step 1
Rinse the raspberries and pat dry with paper towels; set aside.
Step 2
Melt 6 ounces of the chocolate in a glass bowl placed over simmering (not boiling) water, stirring with a silicone whisk or spatula until fully melted. Carefully remove the bowl from the heat and place on a towel or hot pad on your counter. A few pieces at a time, add in the rest of the chocolate. This tempers it, or brings it down in temperature, so that the finish of the chocolate bars will be shiny. (If you have an instant-read thermometer, the chocolate on the stove should reach about 118°F and go down to 90°F after you add in the rest.) Stir in the olive oil until fully incorporated.
Step 3
Line a cookie sheet with waxed paper. Pour out the tempered chocolate in three sections and use an offset spatula to smooth each one out to a 4-by-3-inch rectangle (don’t worry about being too exact).
Step 4
Sprinkle equal amounts of raspberries and pistachios on each bar. Let the chocolate harden in a cool spot for two or more hours, then use a spatula to transfer to a glass container. Store in the fridge and enjoy within 3 days.
Yields 3 bars
Healthy Ingredient Spotlight
The Differences Between Dark and Milk Chocolate
Each type of chocolate has its fans, with some people loving both. But for the better nutritional profile, dark is the winner. First, it tends to have less sugar, though there are sugar-free versions of both. Second, dark chocolate is vegan friendly since it doesn’t contain any milk solids—it’s naturally dairy free. Another edge: it has up to two or three times the antioxidants called flavanols, a type of flavonoid, found in milk chocolate (see For Your Best Health below to learn why that matters). This is thanks to its higher percentage of cocoa solids or cacao, so always look for labels that give this information. There’s no FDA-mandated minimum of cocoa solids for dark chocolate, but many makers list this along with a description of the chocolate’s flavor profile, which is important for bakers. Those cocoa solids also give dark chocolate a much richer flavor than milk chocolate.
Quick Kitchen Nugget
Melting Chocolate in the Microwave
This is an easy way to melt chocolate without using the stovetop: Place three-quarters of the needed amount in a microwave-safe bowl and microwave on the 50% setting for 30 seconds to 1 minute at a time, checking between bursts. When the chocolate has melted, add the reserved chocolate to the bowl, let it sit for a minute, then fold it together with a spatula. As the additional chocolate melts, it will also bring down the temperature of the microwaved chocolate.
Note: Chocolate melts better when it’s in smaller pieces. If you don’t want to have to chop up a block of chocolate, buy coin-shaped wafers from brands like Valrhona, Callebaut, and Guittard. Save chocolate chips for cookies because they’re made to not melt completely.
For Your Best Health
Flavonoid-rich Foods for Health
A recent study led by researchers from Queen’s University Belfast, Edith Cowan University Perth (ECU), the Medical University of Vienna, and Universitat Wien in Austria found that increasing the diversity of flavonoids in your diet—from foods like cocoa, tea, apples, and grapes as well as blueberries, strawberries, and oranges—could help prevent the development of health conditions such as type 2 diabetes, cardiovascular disease (CVD), cancer, and neurological diseases and offers the potential of living longer. Published in Nature Food, the study tracked over 120,000 participants from 40 to 70 years old for more than a decade.
ECU research fellow, first author, and co-lead of the study Benjamin Parmenter, PhD, made the initial discovery that a flavonoid-diverse diet is good for health. “Flavonoid intake of around 500 mg a day was associated with a 16% lower risk of all-cause mortality, as well as a ~10% lower risk of CVD, type 2 diabetes, and respiratory disease. That’s roughly the amount of flavonoids that you would consume in two cups of tea.”
Dr. Parmenter added that those who consumed the widest diversity of flavonoids had an even lower risk of these diseases, even when consuming the same total number of milligrams. For example, instead of just drinking tea, also enjoy berries, chocolate, and apples.
“We have known for some time that higher intakes of dietary flavonoids, powerful bioactives naturally present in many foods and drinks, can reduce the risk of developing heart disease, type 2 diabetes, and neurological conditions like Parkinson’s,” said study co-lead professor Aedín Cassidy, PhD, from the Co-Centre for Sustainable Food Systems and Institute for Global Food Security at Queen’s. “We also know from lab data and clinical studies that different flavonoids work in different ways—some improve blood pressure, others help with cholesterol levels and decrease inflammation. This study is significant, as the results indicate that consuming a higher quantity and wider diversity has the potential to lead to a greater reduction in ill health than just a single source.”
Professor Tilman Kühn, PhD, a co-lead author, noted that the importance of diversity of flavonoid intake hadn’t been investigated until now, making this study very significant, as the findings align with the belief that eating the rainbow is invaluable for maintaining good health. “Eating fruits and vegetables in a variety of colors, including those rich in flavonoids, means you’re more likely to get the vitamins and nutrients you need to sustain a healthier lifestyle,” he said.
The first-ever dietary guidelines for flavonoids were released recently, but this research goes one step further. “Our study provides inaugural evidence that we may also need to advise increasing diversity of intake of these compounds for optimal benefits,” Dr. Parmenter said.
“The results provide a clear public health message, suggesting that simple and achievable dietary swaps, such as drinking more tea and eating more berries and apples for example, can help increase the variety and intake of flavonoid-rich foods, and potentially improve health in the long term,” Dr. Cassidy added.
Fitness Flash
Outdoor Exercise and Air Quality
According to experts at ACE (American Council on Exercise), a leading certifier of fitness professionals, it’s important to know your local air quality before you go outside to exercise. When the air quality is bad, it can put your overall health at risk, cause increases in resting and exercise heart rate and blood pressure, worsen asthma, and decrease lung function and oxygen-carrying capacity. This is because, in part, your body’s natural air-filtration system process is less effective when you breathe through your mouth and more pollutants reach the lungs. This is true regardless of the cause of bad air quality, including wildfires, pollen, and even heavy traffic.
ACE has these suggestions:
Understand the risk-reward balance between physical activity and air pollution. On some days, it may be safer to bring your workout indoors or at least reduce the intensity at which you work out.
Pay attention to the air-quality index in your area. You can check it daily at airnow.gov.
Be mindful of when and where you exercise. Avoid heavily trafficked roads at peak commuting times, for instance. Look at pollen reports before you go out if you’re sensitive to this allergen.
Consider wearing a face mask. It will keep you from inhaling allergens and pollutants without impacting your performance.
Olive oil enhances dark chocolate by adding a fresh, slightly herbal taste. Raspberries and pistachios add layers of flavor and texture. Tip: Blueberries and almonds are another great combo.
Ingredients
3 ounces raspberries
8 ounces dark chocolate discs or pieces, preferably 70% cacao
2 tablespoons extra virgin olive oil
1 ounce shelled, unsalted pistachios
Directions
Step 1
Rinse the raspberries and pat dry with paper towels; set aside.
Step 2
Melt 6 ounces of the chocolate in a glass bowl placed over simmering (not boiling) water, stirring with a silicone whisk or spatula until fully melted. Carefully remove the bowl from the heat and place on a towel or hot pad on your counter. A few pieces at a time, add in the rest of the chocolate. This tempers it, or brings it down in temperature, so that the finish of the chocolate bars will be shiny. (If you have an instant-read thermometer, the chocolate on the stove should reach about 118°F and go down to 90°F after you add in the rest.) Stir in the olive oil until fully incorporated.
Step 3
Line a cookie sheet with waxed paper. Pour out the tempered chocolate in three sections and use an offset spatula to smooth each one out to a 4-by-3-inch rectangle (don’t worry about being too exact).
Step 4
Sprinkle equal amounts of raspberries and pistachios on each bar. Let the chocolate harden in a cool spot for two or more hours, then use a spatula to transfer to a glass container. Store in the fridge and enjoy within 3 days.
Summer Lentil Salad Recipe, Spotlight on Lentils, The Mediterranean Diet for IBS and Outrunning Alzheimer’s
Lentils are the unsung heroes of the legume family—high in protein and fiber along with other nutrients and fast to cook. They’re the perfect replacement for rice in summer salads and side dishes. They also fit right into the Mediterranean diet, a way of eating that could be a welcome change from the FODMAP diet for people living with IBS, according to a new study. I’m also sharing research that takes a deeper dive into exercise as a weapon in the war against Alzheimer’s.
Place the lentils in a sieve and rinse under cold running water, picking through to remove any pebbles. Bring the stock to a boil in a large pot, then add the lentils, celery, carrots, bay leaf, and salt. Turn down the heat to maintain a simmer, cover the pot, and cook until the lentils are tender but still toothsome (think al dente), about 25 minutes. Check 5 minutes in advance to make sure there’s still some liquid so that the lentils won’t scorch. If the lentils aren’t tender once the broth evaporates, add 1/2 cup more liquid and continue cooking 5-10 more minutes.
Step 2
While the lentils are cooking, make the dressing. In a medium bowl, mix the vinegar, shallot, black pepper, and Dijon. Slowly whisk in the olive oil. Taste and add more vinegar if desired.
Step 3
When the lentils are ready, strain off any remaining liquid and transfer to a large bowl; discard the bay leaf. Fold in the red onion, bell pepper, and parsley. Pour on the dressing and toss to coat. Taste and add salt as desired. Serve at room temperature or chilled.
Yields 8 servings
Healthy Ingredient Spotlight
Let’s Hear It for Lentils
High in fiber, vitamin C, and other antioxidants, strawberries also deliver potassium, folate, and magnesium. But they also have a tendency to get moldy when moisture gets trapped between the berries, especially in typical clamshell plastic containers. A simple storage trick is to unpack them as soon as you get home and transfer them, unwashed, to a paper towel-lined glass container—line them up upside down, leaving a bit of room between them, and store in the fridge, uncovered, suggest the experts at the Utah State University Extension. Wash them just before hulling (a curved grapefruit knife works great) and blot dry with fresh paper towels.
Quick Kitchen Nugget
Making Lentils in Advance
With 22 grams of protein in every cup of cooked French lentils, these nutrient-dense nuggets are great to have in the fridge, ready to sprinkle on green salads, add to other side dishes, or have as a satisfying snack drizzled with olive oil. Once you’ve cooked up a batch, drain them and let them come to room temperature. Transfer to a glass container and pop into the fridge. They’ll stay fresh for up to one week.
For Your Best Health
The Mediterranean Diet for IBS
IBS, or irritable bowel syndrome, affects an estimated 4 to 11 percent of all people, and most prefer dietary interventions to medication. Many try following the low-FODMAP diet, according to researchers at Michigan Medicine. It improves symptoms in more than half of patients, but it’s restrictive—it cuts out so many foods that people find it hard to follow. Previous investigations from these researchers, who were looking for more acceptable versions, led to their “FODMAP simple” diet, which only restricts the food groups in the FODMAP diet that are most likely to cause symptoms. Still, because any type of restrictive diets can be difficult to adopt, Michigan Medicine gastroenterologist Prashant Singh, MBBS, and his colleagues decided to look at a completely different alternative, the Mediterranean diet.
Many physicians are already behind the Mediterranean diet because of its benefits to cardiovascular, cognitive, and general health. With so many advantages, they wanted to see whether it could also bring IBS symptom relief. “In addition to the issue of being costly and time-consuming, there are concerns about nutrient deficiencies and disordered eating when trying a low-FODMAP diet. The Mediterranean diet interested us as an alternative that is not an elimination diet and overcomes several of these limitations related to a low-FODMAP diet,” said Dr. Singh.
For the pilot study, 20 participants, all of whom were diagnosed with either IBS-D (diarrhea) or IBS-M (mixed symptoms of constipation and diarrhea), were randomized into two groups. For four weeks, one group followed the Mediterranean diet and the other followed the restriction phase of a low-FODMAP diet.
The primary endpoint was an FDA-standard 30 percent reduction in abdominal pain intensity after four weeks. In the Mediterranean diet group, 73 percent of the patients met the primary endpoint for symptom improvement versus 81.8 percent in the low-FODMAP group. Though the low-FODMAP group experienced a greater improvement measured by both abdominal pain intensity and the IBS symptom severity score, the Mediterranean diet did provide symptom relief with fewer food restrictions.
“This study adds to a growing body of evidence that suggests that a Mediterranean diet might be a useful addition to the menu of evidence-based dietary interventions for patients with IBS,” said William Chey, MD, chief of gastroenterology at the University of Michigan, president-elect of the American College of Gastroenterology, and senior author of the research paper.
Researchers found the results of this pilot study encouraging enough to warrant future and larger controlled trials to investigate the potential of the Mediterranean diet as an effective intervention for patients with IBS. They believe studies comparing the long-term efficacy of the Mediterranean diet with long-term outcomes following the reintroduction and personalization phases of the low-FODMAP diet are needed.
Fitness Flash
Outrunning Alzheimer’s?
A Mass General Brigham study, published in Nature Neuroscience, has revealed how exercise rewires the brain at the cellular level. “While we’ve long known that exercise helps protect the brain, we didn’t fully understand which cells were responsible or how it worked at a molecular level,” said senior author Christiane D. Wrann, DVM, PhD, a neuroscientist and leader of the Program in Neuroprotection in Exercise at the Mass General Brigham Heart and Vascular Institute and the McCance Center for Brain Health at Massachusetts General Hospital. “Now, we have a detailed map of how exercise impacts each major cell type in the memory center of the brain in Alzheimer’s disease.”
The research team from Mass General Brigham and collaborators at SUNY Upstate Medical University leveraged advanced single-nuclei RNA sequencing (snRNA-seq), a relatively new technology that allows researchers to look at activity at the molecular level in single cells for an in-depth understanding of diseases like Alzheimer’s, along with a widely used preclinical model for Alzheimer’s disease. Focusing on a part of the hippocampus, a critical region for memory and learning damaged early in Alzheimer’s, they identified specific brain cell types that responded most to exercise.
They exercised a common mouse model for Alzheimer’s disease using running wheels, which improved the mice’s memory compared to their sedentary counterparts. They then analyzed gene activity across thousands of individual brain cells, finding that exercise changed activity both in microglia, a disease-associated population of brain cells, and in a specific type of neurovascular-associated astrocyte (NVA), newly discovered by the team, which are cells associated with blood vessels in the brain. Furthermore, the scientists identified the metabolic gene Atpif1 as an important regulator to create new neurons in the brain. “That we were able to modulate newborn neurons using our new target genes set underscores the promise our study,” said lead author Joana Da Rocha, PhD, a postdoctoral fellow working in Dr. Wrann’s lab.
To ensure the findings were relevant to humans, the team validated their discoveries in a large dataset of human Alzheimer’s brain tissue, finding striking similarities. “This work not only sheds light on how exercise benefits the brain but also uncovers potential cell-specific targets for future Alzheimer’s therapies,” said Nathan Tucker, a biostatistician at SUNY Upstate Medical University and co-senior author of the study. “Our study offers a valuable resource for the scientific community investigating Alzheimer’s prevention and treatment.”
