“Spiked” Apples Recipe, Spotlight on Apples, The Paring Knife, Cutting Calories May Boost Longevity, and Do You Have Aging Anxiety? Another Reason to Exercise!

If you’re like me, you love recipes that can be adapted to many dishes—and that’s why spiked apples are part of my winter repertoire. You’ll be tempted to eat them right out of the pan, but you should definitely explore the ways they can enhance other dishes. I’m also sharing two new discoveries—why just a small cut in daily calories can add years to your life and what you can do to quell anxiety over aging.

“Spiked” Apples

• “Spiked” Apples

  Calvados, the apple brandy from France’s Normandy region, adds great depth of flavor to apple dishes. Since most of the alcohol burns off, my spiked apples make a great addition to your morning oats or yogurt as well as a delicious filling for a tart or crêpes or the topping for a scoop of ice cream—vanilla and olive oil ice cream, of course! They’re equally delicious served alongside pork chops or a pork roast.

  Ingredients

  • 4 tablespoons extra virgin olive oil
  • 2 tart apples, such as Granny Smith, cored and sliced into 12 wedges
  • 2 sweet apples, such as Fuji or Honeycrisp, cored and sliced into 12 wedges
  • 1/4 cup calvados
  • 1/4 cup brown sugar or your choice of sweetener
  • Cinnamon to taste
  • 2 tablespoons unsalted butter

  Directions

  Heat a large frying pan over medium heat. When very warm, add the olive oil and the apples, arranging the fruit in one layer (do this in batches if your pan can’t hold them all at once). Let the apples cook until the edges brown slightly, then flip them and brown again. Add the calvados to deglaze the pan. After one minute, sprinkle on the brown sugar and cinnamon and toss. The sugar should melt, but don’t let it burn. Add the butter and swirl until it melts, then remove from heat. 

  Yields 4-6 servings

Healthy Ingredient Spotlight

Apples Galore

There’s merit to the old adage that an apple a day keeps the doctor away—high in fiber and nutrients, apples are a great way to get you closer to the recommended daily five to seven servings of fruits and vegetables needed for good health. With over 2,000 varieties of apples now available and more being developed at leading agricultural universities, it would take years to try them all! Here are some of the most widely available varieties and how best to enjoy them.

• Empire: a sweet-tart cross between Red Delicious and McIntosh, ideal for eating raw or baking
• Fuji: crispy, sweet, and juicy, ideal for all uses
• Gala: crisp, juicy, and very sweet, ideal for eating raw
• Golden Delicious: mild, sweet flavor, ideal for eating raw or baking
• Granny Smith: tart and crisp, ideal for salads or cooking
• Honeycrisp: sweet and crispy, ideal for eating raw or making applesauce
• Jonagold: a sweet-tart mix developed from Golden Delicious and Jonathan apples, ideal for baking
• Macoun: very sweet, juicy, and aromatic, ideal for eating raw or making applesauce
• McIntosh: tangy and tart, ideal for eating raw or making applesauce
• Pink Lady: a highly flavorful cross of Golden Delicious and Lady Williams apples, ideal for all uses
• Red Delicious: sweet, crispy, and juicy, ideal for eating raw

Quick Kitchen Nugget

The Paring Knife

With all the stunning types of chef’s knives available, the chef’s knife’s sidekick, the paring knife, is often an afterthought in the kitchen. But it’s a very handy knife to have for precision work and when cutting smaller and soft foods, from a garlic clove up to an apple. (You’ll need to stick to your chef’s knife for hard foods like squash, potatoes, carrots, and melons.) A paring knife blade is typically between 3 and 4 inches long, and though the handle is smaller than that of other knives, you should still test it before you buy to make sure it feels comfortable in your hand.  

For Your Best Health

Cutting Calories May Boost Longevity

Calorie restriction—decreasing daily calories—without depriving yourself of essential vitamins and minerals and other key nutrients has long been known to delay the progression of age-related diseases in animal studies. New research, published in the journal Aging Cell, suggests it may do the same for people. 

Researchers at the National Institutes of Health and colleagues analyzed data from the Comprehensive Assessment of Long-Term Effects of Reducing Intake of Energy (CALERIE), a study supported by the National Institute on Aging (NIA). For CALERIE participants, the goal was to reduce daily calories by 25%. However, over a two-year span, the best they were able to achieve was a 12% reduction. But it turns out that this was enough to rejuvenate muscle and activate key biological pathways that are important in healthy aging.

“A 12% reduction in calorie intake is very modest,” said corresponding author and NIA Scientific Director Luigi Ferrucci, MD, PhD. “This kind of small reduction in calorie intake is doable and may make a big difference in your health.”

The research team also sought to explain a finding of past studies: People practicing calorie restriction lost muscle mass (along with losing weight in general), but they did not lose all-important muscle strength. To understand this phenomenon, they looked at thigh muscle biopsies from CALERIE participants collected when people joined the study and at one-year and two-year follow-ups. They discovered that during calorie restriction certain genes were upregulated, meaning the cells made more mRNA, and others were downregulated, meaning the cells produced less mRNA. Specifically, a lower caloric intake upregulated genes responsible for energy generation and metabolism and downregulated inflammatory genes, leading to lower inflammation.

“Since inflammation and aging are strongly coupled, calorie restriction represents a powerful approach to preventing the pro-inflammatory state that is developed by many older people,” said Dr. Ferrucci.

Fitness Flash

Do You Have Aging Anxiety? Another Reason to Exercise!

According to Sarah Francis, PhD, Iowa State University professor and Jane Armstrong Endowed Chair of Food Science and Human Nutrition, many people experience aging anxiety—fears and concerns about losing autonomy and relationships as well as physical and psychological changes and discomfort or lack of enjoyment being around older people. “Previous research has shown that if you have high anxiety about aging, you have poor health outcomes. But if you view it more positively as a life stage, you have better health outcomes. You’re more likely to make lifestyle changes that benefit you in the long run,” said Dr. Francis.

Since 2010, she has been part of a USDA multistate project bringing together experts in physical activity, clinical nutrition, and community health programming to support healthy aging. Part of their research has focused on identifying factors that influence physical activity, such as aging anxiety. One explanation for the negative link between aging anxiety and poor health is that anxiety can get in the way of being physically active, and not being active is often at the root of many health problems. 

To better understand how aging anxiety relates not only to physical activity but also to other factors like gender, marital status, and income, Dr. Francis and the team designed a 142-question online survey and recruited a cross-section of urban, suburban, and rural participants including people as young as 40 to understand how different aspects of aging anxiety shift with age. In total, 1,250 people from Washington, DC, and six states (Iowa, Illinois, Maryland, Rhode Island, South Dakota, and West Virginia) responded to the survey. 

“One of the most important findings is that higher positivity about physical activity relates to lower anxiety about aging,” said Dr. Francis. “Perhaps this is because the physical, mental, and social benefits of staying active contribute to overall well-being and a more favorable perception of the aging process, ultimately reducing anxiety related to growing older.”

It’s also well known that exercise, especially strength training, helps conserve bone mass and muscle, reduce the risk of dementia, and maintain motor control. But, Dr. Francis pointed out, many middle-aged and older adults face barriers to exercising, from being afraid they’ll get hurt to not having easy access to a gym or greenspaces for walking. For those who can’t overcome these barriers, the team’s next project is developing and testing a virtual program that would include at-home physical activities and an educational component to encourage eating healthy.

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Potato Salad with Sweet and Tart Vinaigrette Recipe, Spotlight on Scallions, How to Boil Small Potatoes, Imperfect Calorie Counting and Exercising to Burn Fat

Summer may be winding down, but there’s still plenty of time to enjoy outdoor get-togethers with family and friends. Whether you’re hosting or want a great dish to bring for a BBQ, this potato salad, garnished with scallions, will delight. If you’re trying to lose weight—and who isn’t?—no food needs to be off limits, including potato salad! But there are certain tweaks you can make to your plan to improve results. Two new research studies provide details on calorie tracking and fat-burning exercises.

Potato Salad with Sweet and Tart Vinaigrette

• Potato Salad with Sweet and Tart Vinaigrette

  This German-style (no mayo) potato salad gets a flavor boost from one of my favorite vinaigrettes, a melding of two vinegars—one more tart, one more sweet. I also love the mix of sautéed shallots and raw scallions or chives, all mild members of the genus allium. This side dish tastes best served warm or at room temperature. Double or triple the ingredients for a large crowd.

  Ingredients

  For the vinaigrette:

  • 1 tablespoon red wine vinegar
  • 1 tablespoon balsamic vinegar of Modena
  • 1 teaspoon Dijon mustard
  • 1 teaspoon honey
  • 1/8 teaspoon coarse salt, plus more to taste
  • 1/2 small garlic clove, peeled and minced 
  • 1/4 cup extra virgin olive oil 
  • Freshly ground black pepper to taste

  For the salad:

  • 2 pounds small red potatoes, unpeeled
  • 1 tablespoon extra virgin olive oil
  • 4 ounces best-quality bacon, cut into 1-inch sections
  • 4 shallots, thinly sliced
  • 1/2 cup fresh scallions or chives, sliced on the diagonal  
  • Coarse sea salt, to taste
  • Freshly ground black pepper, to taste

  Directions

  Step 1

  Make the vinaigrette: In a medium mixing bowl, whisk together the two vinegars, mustard, honey, salt, and garlic. Gradually whisk in the olive oil until the dressing is emulsified. Season to taste with black pepper and more salt, if desired. Set aside while you cook the potatoes.

  Step 2

  Boil the potatoes until the tip of a knife easily pierces one or two, about 10-15 minutes (see “Quick Kitchen Nugget” below). Use a slotted spoon to transfer them to a colander to drain and cool slightly while you proceed.

  Step 3

  Heat a heavy skillet or frying pan. When hot, add the olive oil and sauté the bacon. Use a slotted spoon to transfer the bacon to a dish lined with paper towels. Add the shallots to the hot pan and sauté until they are softened and lightly browned. 

  Step 4

  Cut the potatoes in half and place them in a large serving bowl. Dress with the vinaigrette. Top with the sautéed shallots and the fresh scallions or chives. Toss gently and season to taste with salt and pepper. Just before serving, sprinkle on the bacon bits.

  Yields 6 servings

Healthy Ingredient Spotlight

Scallions

Also called green onions in some parts of the country, scallions offer sweet onion flavor and two textures—the stronger white ends and the mild green tops or leaves. Use the entire scallion after trimming off the roots and snipping the tips (if needed). The ends should feel firm, not mushy, and the tops should be crisp and bright green, not wilted or dark.

A staple in many Asian cuisines, chopped scallions are also delicious when sprinkled on scrambled eggs and folded into cream cheese for a bagel topping. 

Quick Kitchen Nugget

Boiling Small Potatoes

Small or baby potatoes, whether red, white, or purple, don’t need to be halved or quartered before boiling. In fact, keeping them whole can prevent them from falling apart during the cooking process. Start by placing the whole, unpeeled potatoes in a pot large enough to hold them in a single layer and add enough cold water to cover them by about an inch. Bring the water to a boil, add a teaspoon of sea salt, and let them cook for between 12 and 15 minutes, until the tip of a sharp knife pierces two or three of them. Use a large slotted spoon to transfer them to a colander, then proceed with your recipe. For a quick side dish, smash them with the back of a spoon, drizzle with extra virgin olive oil, and top with grains of Maldon salt.

For Your Best Health

Imperfect Calorie Counting May Be Good Enough

Successful dieters often credit keeping a food journal or tracking calories as an important habit to have. But how well do these behaviors correlate to weight loss? That’s one of the questions answered in the study “How much food tracking during a digital weight‐management program is enough to produce clinically significant weight loss?” recently published in the journal Obesity.

Over the course of a six-month period, researchers from the University of Connecticut (UConn), the University of Florida, and the University of Pennsylvania tracked 153 weight-loss program participants who used a commercial digital weight-loss program to record their food intake (it was the new Personal Points program developed by WeightWatchers, intended to simplify record-keeping by designating a number of foods as zero-point items, meaning they did not have to be entered). 

UConn assistant professor in the Department of Allied Health Sciences Ran Xu, PhD, and PhD student Richard Bannor analyzed the data to see whether there were patterns associated with weight-loss success from a data science perspective. Using a method called receiver operating characteristics (ROC) curve analysis, they uncovered how many days people need to track their food to reach clinically significant weight loss. 

“It turns out, you don’t need to track 100% each day to be successful,” says Dr. Xu. “Specifically in this trial, we find that people only need to track around 30% of the days to lose more than 3% weight and 40% of the days to lose more than 5% weight, or almost 70% of days to lose more than 10% weight.” 

“A lot of times people feel like they need to lose 50 pounds to get healthier, but actually we start to see changes in things like blood pressure, lipids, cardiovascular disease risk, and diabetes risk when people lose about 5% to 10% of their weight,” says study co-author and UConn Department of Allied Health Sciences Professor Sherry Pagoto, PhD. “That can be accomplished if participants lose about one to two pounds a week, which is considered a healthy pace of weight loss.

“One thing that is interesting about this data is, oftentimes in the literature, researchers just look at whether there is a correlation between tracking and overall weight loss outcomes. Ran took a data science approach to the data and found there is more to the story,” Dr. Pagoto says. “Now we’re seeing different patterns of tracking. This will help us identify when to provide extra assistance and who will need it the most.”

Future studies will dig deeper into these patterns to understand why they arise and hopefully uncover interventions to improve outcomes. For now, if you use these apps, know that you can still get significant results, even if you miss some entries.

Fitness Flash

Exercising to Burn Fat

The study “Discrepancy between predicted and measured exercise intensity for eliciting the maximal rate of lipid oxidation,” done by researchers at the Icahn School of Medicine at Mount Sinai and published in the journal Nutrition, Metabolism and Cardiovascular Disease found that fat burning during exercise varies widely between people. We don’t all burn fat at the same target heart rate, and reaching a preset exercise machine setting won’t bring the same results for everyone.  

“People with a goal of weight or fat loss may be interested in exercising at the intensity which allows for the maximal rate of fat burning. Most commercial exercise machines offer a ‘fat-burning zone’ option, depending upon age, sex, and heart rate,” says lead author Hannah Kittrell, MS, RD, CDN, director of the Mount Sinai Physiolab, a clinical body composition and exercise physiology laboratory at Mount Sinai Morningside, and a PhD candidate in the Augmented Intelligence in Medicine and Science laboratory. “However, the typically recommended fat-burning zone has not been validated, thus individuals may be exercising at intensities that are not aligned with their personalized weight loss goals.”

Reaching a target heart rate is still great for overall health, but if fat-burning is one of your key fitness goals, the researchers suggest having clinical exercise testing, a diagnostic procedure to measure your physiological response to exercise to get a more personalized exercise prescription. (Talk to your doctor or personal trainer about where to get this evaluation.)

“We hope that this work will inspire more individuals and trainers to utilize clinical exercise testing to prescribe personalized exercise routines tailored to fat loss. It also emphasizes the role that data-driven approaches can have toward precision exercise,” says senior author Girish Nadkarni, MD, MPH, Irene and Dr. Arthur M. Fishberg Professor of Medicine at Icahn Mount Sinai, director of The Charles Bronfman Institute for Personalized Medicine, and system chief, Division of Data-Driven and Digital Medicine, Department of Medicine.

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