Nutritionist and Entrepreneur María Magdalena Diego Highlights the Benefits of Frozen Foods and the Company’s Role in Healthy Eating

Walking through the frozen food aisle at the Mariano’s on Clark Street in Chicago last week, I noticed something interesting: the section dedicated to frozen vegetables and proteins had expanded significantly compared to just a year ago. This wasn’t just a random observation; it connected directly to insights shared by María Magdalena Diego, a licensed nutritionist and entrepreneur whose recent comments on the nutritional value of frozen foods were featured in a Santa Fe health publication. While her expertise stems from work in Argentina, the core message about frozen food technology preserving nutrients resonates powerfully here in the Midwest, where seasonal shifts and busy urban lifestyles make convenient, healthy options a constant consideration for residents from Lincoln Park to Hyde Park.

Diego specifically highlighted the role of rapid-freezing technology, like that employed by the Santa Fe-based company Conosud, in locking in vitamins and minerals at peak freshness. This process, known as IQF (Individual Quick Freezing), prevents the formation of large ice crystals that can damage cell structures and lead to nutrient loss upon thawing. For Chicagoans navigating long winters where fresh produce variety diminishes and costs can rise, understanding that properly frozen spinach, berries, or fish can retain comparable nutritional profiles to their fresh counterparts—especially when handled correctly from freezer to table—offers practical reassurance. It shifts the conversation from skepticism about processed foods to recognizing freezing as a preservation method, much like canning or drying, that serves a vital role in year-round nutrition access, particularly in food deserts or areas with limited seasonal growing capacity.

Beyond the basic science, Diego’s emphasis on frozen foods facilitating “una alimentación saludable” (a healthy diet) opens doors to discussing second-order effects in a city like Chicago. Consider the impact on meal planning for shift workers at Northwestern Memorial Hospital or O’Hare Airport, where irregular schedules make fresh food prep challenging. Having reliable, nutrient-dense frozen options reduces reliance on less nutritious convenience foods. There’s an emerging trend where Chicago-based community gardens and urban farms, like those partnered with the Chicago Botanic Garden’s Windy City Harvest program, are exploring flash-freezing surplus harvests to extend their CSA shares into winter months—a direct application of the preservation principles Diego endorsed. This connects individual nutrition choices to broader community resilience and local food system sustainability efforts gaining traction across the city’s 50 wards.

The socio-economic angle is equally compelling. In neighborhoods experiencing food insecurity, such as parts of the South and West Sides identified in studies by the Greater Chicago Food Depository, affordable, nutritious frozen staples—like frozen beans, peas, or whole grain mixes—can be a critical buffer against reliance on expensive or less healthy alternatives. Diego’s point about freezing technology enabling healthier eating aligns with initiatives run by organizations like the Illinois Public Health Institute, which work on improving food access and nutrition education. When combined with SNAP incentive programs at retailers like select Aldi or Walmart locations in Chicago that offer bonuses for purchasing fruits and vegetables (including frozen), the potential for frozen foods to contribute positively to public health goals becomes tangible, moving beyond individual choice to systemic support.

Given my background in analyzing how global nutritional trends translate into actionable local strategies, if you’re a Chicago resident reevaluating your freezer’s role in your health routine—whether you’re a busy professional in the Loop, a parent managing school schedules in Evanston, or a senior looking for easy meal solutions in Rogers Park—here are three types of local professionals whose expertise can aid you navigate this landscape effectively.

First, seek out Community Nutrition Educators affiliated with Chicago Extension or local FQHCs. These professionals, often found through programs run by the University of Illinois Extension’s Cook County office or community health centers like Mile Square Health Center, specialize in translating complex food science into practical, culturally relevant advice. Look for educators who offer free workshops (frequently hosted at Chicago Public Library branches) specifically addressing food preservation methods, label reading for frozen products (checking for added sugars or sodium), and budget-friendly meal planning that incorporates frozen staples without sacrificing nutritional value. Their strength lies in understanding neighborhood-specific dietary patterns, and barriers.

Second, consider consulting Registered Dietitians (RDs) with a focus on Food Systems or Urban Agriculture. Unlike general clinical dietitians, these specialists—practitioners you might find via the Chicago Academy of Nutrition and Dietetics directory or associated with urban farming nonprofits like Growing Home or The Plant—understand the journey of food from source to freezer. They can help you assess not just the nutritional content of frozen items but similarly their environmental footprint, connect you with local producers using rapid-freeze techniques for seasonal surpluses (like those supplying farmers’ markets at Daley Plaza or Green City Market), and integrate frozen foods into a diet that supports both personal health and local sustainability goals. Verify their credentials through the Commission on Dietetic Registration and ask about their specific experience with food preservation technologies.

Third, explore guidance from Culinary Historians or Food Writers focused on Midwest Foodways. While not clinicians, experts affiliated with institutions like the Culinary Historians of Chicago or contributors to publications such as Chicago Magazine’s food section offer invaluable context on how preservation methods, including freezing, have evolved in our region’s culinary tradition. They can help debunk myths (like the idea that “fresh is always best”) by sharing historical perspectives on how Midwestern households have long relied on preservation—from root cellaring to modern freezing—to survive winters and maintain dietary variety. Engaging with their work, whether through talks at the Chicago History Museum or well-researched articles, adds a layer of cultural understanding that complements the nutritional science, helping you make informed choices rooted in both health and heritage.

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