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Lower Dose OIT - Wisconsin Food Allergy - Wisconsin - Dr Ringwala - Allergy Care - Food Allergy Specialist

Lower-Dose OIT: New Research Shows a Safer Path to Food Allergy Tolerance

One of the most common reasons families hesitate before starting Oral Immunotherapy is the side effect profile. OIT works by gradually introducing increasing amounts of a food allergen to desensitize the immune system, and during that process — particularly in the up-dosing phase — reactions are not uncommon. Oral symptoms, gastrointestinal discomfort, and in a small percentage of cases, systemic reactions during dose escalations have led some families to pause before beginning a program that could otherwise transform their child’s safety and quality of life. Emerging research is changing this conversation. A growing body of evidence suggests that lower maintenance doses of OIT — delivering far less allergen than conventional protocols — may achieve meaningful clinical outcomes with a significantly more favorable side effect profile. For many families on the fence about OIT, this research represents a practical path forward. This article explains what the research shows, how lower-dose OIT differs from standard protocols, and what it means for Wisconsin families considering this treatment. If you’d like to discuss whether OIT is appropriate for your child and what protocol might fit your situation, our board-certified allergist Dr. Ringwala at Wisconsin Food Allergy is available for consultations What Standard OIT Looks Like To understand lower-dose OIT, it helps to understand what conventional OIT protocols involve. In a standard peanut OIT program — including the Palforzia protocol approved by the FDA in 2020 — the process has three phases: Initial dose escalation: Conducted in clinic over a single day, this phase starts at a very low dose (typically 0.5-1mg of peanut protein) and increases to an initial home dose. Up-dosing phase: Over the following months, the dose is gradually increased every two weeks, typically during a clinic visit where each new dose is administered and the patient is observed for 30-60 minutes. The Palforzia up-dosing phase proceeds through 11 dose levels, from 3mg up to 300mg of peanut protein. Maintenance phase: Once the target maintenance dose is reached, the patient continues at that dose daily. For Palforzia, the maintenance dose is 300mg of peanut protein per day. For researcher-developed OIT programs, standard maintenance doses have historically ranged from 300mg to 4,000mg depending on the program. Side effects are most common during the up-dosing phase when new dose levels are being introduced. Research published in JAMA Pediatrics and NEJM has documented that symptoms during the up-dosing phase of OIT — including oral symptoms, stomach pain, and in a small percentage of patients, systemic reactions requiring epinephrine — occur at meaningful rates. This side effect burden is the primary driver of patient discontinuation from OIT programs. What the Research on Lower-Dose OIT Shows The question researchers have been asking is whether lower maintenance doses — doses significantly below the conventional 300-4,000mg range — can still provide clinically meaningful protection against accidental exposures while substantially reducing the side effect burden. Several significant studies have addressed this question. The case for 100-300mg maintenance A study published in Allergy examined outcomes for peanut-allergic patients maintained at doses ranging from 125mg to 300mg of peanut protein. Researchers found that at these doses, a substantial proportion of patients achieved sustained unresponsiveness to doses well above their maintenance level — meaning the tolerance built during OIT persisted even when the daily dose was lower than what conventional protocols specified. The critical insight from this research is that the relationship between maintenance dose and protection is not strictly linear. A patient maintained at 125mg does not have precisely half the protection of a patient maintained at 300mg. Immune tolerance, once built, has a degree of durability that doesn’t map neatly onto dose levels. Reduced side effects at lower maintenance doses Multiple studies have documented that patients on lower maintenance dose protocols experience significantly fewer side effects during the maintenance phase. Gastrointestinal symptoms — which are among the most common complaints in standard OIT — were substantially less frequent. Rates of systemic reactions during maintenance were also lower. For families where side effects were a primary concern — particularly those with children who experienced significant gastrointestinal symptoms during up-dosing — lower maintenance dose protocols offer a different risk-benefit calculation. The PRISM study and related research The PRISM (Peanut Research in Subjects with Mild Allergy) research program and related work from academic centers including Stanford, UNC Chapel Hill, and Johns Hopkins has contributed to a broader understanding that OIT outcomes are not purely dependent on reaching the highest possible dose. Patient-centered outcomes — quality of life, reduced anxiety around accidental exposure, and practical safety for day-to-day living — can be achieved at a range of maintenance dose levels. What “Clinical Benefit” Means at Lower Doses It’s important to be precise about what lower-dose OIT does and does not accomplish, because this distinction matters for informed consent and for family expectations. What lower-dose OIT is designed to achieve: Lower-dose OIT aims to raise the threshold dose required to trigger a serious reaction. A peanut-allergic child who previously reacted to trace exposures — a peanut butter residue on a shared surface, a shared fryer, an unlabeled “may contain” product — may, after lower-dose OIT, be able to tolerate these accidental exposures without a severe reaction. This is sometimes called “threshold shifting.” It does not mean the child can freely eat peanut-containing foods in any quantity. It means the margin of safety for accidental exposure has been meaningfully widened. What lower-dose OIT is not intended to accomplish: Lower-dose maintenance OIT is generally not positioned as a path to “outgrowing” peanut allergy or being able to freely eat peanut in any quantity without concern. That outcome — sometimes called full sustained unresponsiveness — requires higher maintenance doses and longer treatment duration, and it is not achievable in all patients even with conventional protocols. Families considering lower-dose OIT should understand they are primarily gaining accident-proofing, not a cure. For many families, that outcome is exactly what matters most. Who May Be Suitable for Lower-Dose OIT Not every patient is an appropriate candidate for lower-dose protocols, and not

Peanut Allergy - Food Allergy Treatment - Wisconsin Food Allergy - Dr Ringwala - Franklin - Oshkosh - Kenosha - Racine

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Peanut Allergy Myths vs. Facts: What Wisconsin Parents Need to Know

Peanut allergy is one of the most discussed food allergies in the United States — and one of the most misunderstood. Around every peanut allergy diagnosis comes a cloud of conflicting information: from well-meaning relatives who suggest that a small exposure won’t cause any real harm, to viral social media posts claiming that peanut allergies are overdiagnosed, to persistent myths about what schools, restaurants, and families can safely do. This misinformation creates real danger. When parents, teachers, or caregivers operate under false beliefs about peanut allergy, children get put at risk — sometimes severely. This article addresses the most common peanut allergy myths circulating among Wisconsin families and replaces each one with what the evidence actually shows. If you have questions about a specific situation or your child’s allergy profile, our team at Wisconsin Food Allergy is available for consultations at our Kenosha, Franklin, and Oshkosh locations Myth 1: “A Small Amount Won’t Cause a Serious Reaction” This is one of the most dangerous misconceptions in food allergy. The dose-response relationship for peanut allergy is not predictable in the way this myth implies. The facts: For many peanut-allergic individuals, trace quantities — quantities too small to see or smell — are sufficient to trigger anaphylaxis. Research published in peer-reviewed allergy journals has documented severe reactions to quantities measured in milligrams. The threshold dose varies considerably between individuals, but it cannot be assumed in advance without formal supervised testing. Critically, a child’s threshold dose is not fixed. Factors including concurrent illness, exercise before or after eating, alcohol (in adults), and whether the allergen was consumed alongside other foods all influence reaction severity. A quantity that caused only mild symptoms last month may cause a more severe reaction under different conditions. The risk of assuming a small exposure is safe is not worth taking. If your child has been prescribed an epinephrine auto-injector, it was prescribed because a serious reaction is a genuine possibility — not because it will never be needed. Myth 2: “Children Almost Always Outgrow Peanut Allergy” This myth conflates peanut allergy with milk and egg allergy, which children do frequently outgrow. Peanut allergy follows a fundamentally different pattern. The facts: Research from the Journal of Allergy and Clinical Immunology found that approximately 20-25% of children with peanut allergy do develop natural tolerance over time. This is a meaningful proportion, and it is a real possibility for some children. However, it means that roughly 75-80% of peanut-allergic children will carry their allergy into adulthood. The subset of children most likely to outgrow peanut allergy typically have lower initial sensitization levels and milder initial reactions. Children with high levels of peanut-specific IgE and those who have experienced anaphylaxis are less likely to outgrow their allergy. The only way to know whether your child has developed tolerance is through a formal supervised oral food challenge conducted by a board-certified allergist in a clinical setting equipped to manage reactions. Self-testing at home — giving a child peanut and watching what happens — is dangerous and not a medically acceptable approach. Wisconsin Food Allergy can evaluate your child’s current sensitization levels and advise whether an oral food challenge is appropriate. Do not assume your child has outgrown their allergy without professional evaluation. Myth 3: “Peanut-Free Tables at School Completely Protect Allergic Children” Peanut-free lunch tables are a visible and well-intentioned accommodation, and they do reduce exposure risk in specific, limited circumstances. But they do not provide comprehensive protection and should not be treated as a complete safety solution. The facts: Cross-contact with peanut allergens in school settings happens through multiple pathways — many of which do not involve the lunch table at all: A peanut-free table reduces one specific exposure vector. A comprehensive school food allergy management plan — including a 504 Plan or individualized health plan, trained staff who know how to recognize and respond to reactions, and accessible emergency epinephrine — provides far more meaningful protection. [Our team can help Wisconsin families understand their legal rights and develop effective school safety plans](INTERNAL: /contact). Federal law requires schools to make reasonable accommodations for students with food allergies, and Wisconsin families have specific rights under both IDEA and Section 504 of the Rehabilitation Act. Myth 4: “If the Reaction Last Time Was Mild, the Next One Will Be Too” This is a particularly widespread and particularly dangerous myth. Prior reaction severity is not a reliable predictor of future reaction severity. The facts: Allergic reactions to the same allergen can vary dramatically from one exposure to the next. The following factors influence severity independently of prior history: The AAAAI and FARE both explicitly state that prior mild reactions do not predict future mild reactions and that epinephrine should be available for all patients with diagnosed IgE-mediated peanut allergy regardless of their reaction history. Myth 5: “You Can Smell a Peanut Allergy Reaction Coming” The idea that strong peanut odors can trigger anaphylaxis is widespread but not well-supported by evidence. At the same time, the myth that peanut smell poses zero risk has its own inaccuracies. The facts: The overwhelming scientific consensus is that the airborne proteins from peanuts — the smell — are not sufficient to trigger systemic anaphylaxis in the vast majority of peanut-allergic individuals. The quantity of protein in peanut odor is far too small to reach the threshold required for an IgE-mediated systemic reaction. However, this does not mean that proximity to peanuts is always without risk. Contact reactions — touching a surface where peanut butter has been present, then touching eyes or mouth — are a documented and real pathway to exposure. Children in close physical proximity to open peanut products have a higher risk of contact exposure than children who merely smell peanuts. The practical takeaway: anxiety about peanut odor in an open space is generally not supported by the evidence. But physical cross-contact in shared spaces — shared tables, shared materials, close physical interaction — is a legitimate concern that schools and families should manage. Myth 6:

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Understanding Anaphylaxis: What Wisconsin Families Must Know About Severe Food Reactions

Anaphylaxis is a medical emergency that strikes fear into the hearts of families managing food allergies. This severe, potentially life-threatening allergic reaction can progress rapidly from initial symptoms to respiratory distress, cardiovascular collapse, and—without prompt treatment—death. For Wisconsin families living with food allergies, understanding anaphylaxis isn’t optional—it’s essential knowledge that could save a life. The statistics are sobering: food allergies are the leading cause of anaphylaxis treated in emergency departments, accounting for approximately 40% of anaphylactic reactions in the United States. Each year, roughly 200,000 Americans require emergency medical care for allergic reactions to food. While fatalities from food-induced anaphylaxis are relatively rare—estimated at 150-200 deaths annually nationwide—each death represents a preventable tragedy, often occurring when epinephrine wasn’t administered quickly enough or at all. Wisconsin families dealing with severe food allergies face unique challenges. The state’s strong food culture, from Friday fish fries to cheese curds at festivals, creates numerous social situations where food is central. Rural areas may be far from emergency medical facilities, making rapid recognition and treatment of anaphylaxis even more critical. Understanding what anaphylaxis is, recognizing its symptoms, knowing how to respond, and implementing long-term prevention strategies empowers families to manage this serious condition while maintaining quality of life. This comprehensive guide provides Wisconsin families with the knowledge needed to recognize, treat, and prevent anaphylaxis, ensuring they’re prepared for emergencies while understanding how to minimize risks in daily life. What Causes Anaphylaxis Anaphylaxis occurs when the immune system overreacts dramatically to a substance it perceives as dangerous, even though that substance is actually harmless to most people. Understanding what triggers these severe reactions helps families identify and avoid risk factors. Food triggers Among children, eight foods account for approximately 90% of food-induced allergic reactions, including anaphylaxis: milk, eggs, peanuts, tree nuts, soy, wheat, fish, and crustacean shellfish. Sesame was added to this list as the ninth major allergen in 2023, reflecting its increasing recognition as a significant trigger. However, not all of these allergens pose equal anaphylaxis risk. Peanuts, tree nuts, fish, and shellfish are most commonly associated with severe, life-threatening reactions. These allergens tend to cause more intense immune responses and are less likely to be outgrown compared to milk or egg allergies, which many children eventually tolerate as their immune systems mature. Peanut allergy affects approximately 1-2% of children in the United States and is the leading cause of fatal and near-fatal food-induced anaphylaxis. What makes peanut allergy particularly dangerous is the severe reactions that can occur from even trace exposures. Someone with severe peanut allergy might experience anaphylaxis from residue on shared equipment, airborne particles in facilities processing peanuts, or cross-contact with surfaces that previously touched peanuts. Tree nut allergies—including reactions to walnuts, cashews, almonds, pecans, pistachios, hazelnuts, and macadamia nuts—similarly carry high anaphylaxis risk. Individuals allergic to one tree nut are often allergic to multiple tree nuts, though not always to all of them. The varying proteins in different nuts mean each must be tested and evaluated individually. Shellfish allergy, which typically develops in adolescence or adulthood rather than childhood, frequently triggers severe reactions. This category includes crustaceans like shrimp, crab, and lobster, as well as mollusks such as clams, oysters, and squid. Wisconsin’s Friday fish fry tradition means shellfish and finned fish are prevalent in restaurant settings, requiring vigilance from those with these allergies. Milk and egg allergies, while common in young children, less frequently cause anaphylaxis compared to nuts or shellfish. However, severe reactions can still occur, particularly in children with histories of significant reactions or those with concurrent asthma, which increases anaphylaxis risk. Many children outgrow milk and egg allergies by school age, though those with persistent allergies into later childhood may be less likely to achieve tolerance. The severity of previous reactions doesn’t always predict future reaction severity. Someone who has experienced only mild symptoms in the past could potentially have a severe reaction upon subsequent exposure. This unpredictability is why all IgE-mediated food allergies are taken seriously, with epinephrine prescribed even for patients who haven’t yet experienced anaphylaxis. Beyond the major allergens, any food can theoretically trigger anaphylaxis in sensitized individuals. Less common culprits include seeds (sesame, sunflower, poppy), fruits (particularly in individuals with oral allergy syndrome who have reactions beyond the typical mild oral symptoms), legumes other than peanuts, and various spices. Wisconsin allergists evaluate each patient’s specific sensitizations rather than making assumptions based only on common allergens. Cross-contact Cross-contact, sometimes called cross-contamination, occurs when an allergen is unintentionally transferred from one food or surface to another. For individuals with severe allergies, cross-contact represents one of the most common causes of accidental reactions, including anaphylaxis. Manufacturing environments create significant cross-contact risk. Food processing facilities often handle multiple products on shared equipment. Even with cleaning between production runs, trace amounts of allergens can remain. This is why food labels include precautionary statements like “may contain” or “processed in a facility that also processes” specific allergens. While these warnings are voluntary and sometimes used overly cautiously for legal protection, they reflect real risks that individuals with severe allergies must consider seriously. Restaurant kitchens pose substantial cross-contact challenges. Shared fryers cook both allergen-free and allergen-containing foods—for instance, french fries might be cooked in the same oil as breaded fish or onion rings containing wheat. Grills, cutting boards, knives, and other utensils touch multiple foods throughout service. Even when restaurant staff try to accommodate allergies, the fast-paced kitchen environment makes complete allergen separation difficult. Wisconsin’s beloved fish fry tradition exemplifies these challenges. Restaurants serving fish fries typically use shared fryers for multiple items, shared preparation surfaces, and the same utensils. Someone with shellfish allergy might assume the fish itself is safe while not realizing the fryer was also used for shrimp. Someone with wheat allergy might not consider that breading particles contaminate the oil even if they order unbreaded fish. Home kitchens aren’t immune to cross-contact issues. Families managing food allergies must implement careful protocols: using separate cutting boards and utensils for allergen-free food preparation, thoroughly cleaning surfaces between

Wisconsin Food Allergy - Allergy Care Specialist - Madison - Dr Ringwala

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Food Allergy vs Intolerance vs Sensitivity | WI Diagnosis

Food Allergy vs Food Intolerance vs Food Sensitivity: Accurate Diagnosis in Wisconsin When you experience uncomfortable symptoms after eating certain foods, determining the exact cause can feel like solving a complex puzzle. Is it a food allergy vs food intolerance. or perhaps a food sensitivity? While these terms are often used interchangeably in everyday conversation, they represent distinctly different conditions with varying mechanisms, symptoms, and treatment approaches. Understanding the difference between food allergy vs food intolerance is crucial for obtaining an accurate diagnosis and effective treatment, particularly as misidentification can lead to unnecessary dietary restrictions, inadequate management strategies, or even dangerous outcomes. For Wisconsin families experiencing adverse food reactions, working with qualified specialists who can distinguish between these conditions ensures proper care and optimal quality of life. Let’s explore what separates food allergies from intolerances and sensitivities, and how Wisconsin allergists approach diagnosis and treatment. What Defines a Food Allergy Food allergies are immune system disorders that occur when the body mistakenly identifies a harmless food protein as a dangerous invader. This immune response can range from mild discomfort to life-threatening reactions, making accurate diagnosis essential for safety. Understanding what constitutes a true food allergy is the first step in the food allergy vs food intolerance conversation. Immune System Involvement A true food allergy involves the immune system mounting a defensive response against specific food proteins. When someone with a food allergy consumes the triggering food, their immune system recognizes certain proteins in that food as threats and launches an attack to neutralize them. This immune response causes the release of various chemicals throughout the body, including histamine, which triggers the physical symptoms associated with allergic reactions. The immune involvement distinguishes food allergies from other adverse food reactions. While food intolerances and some sensitivities may cause significant discomfort, they don’t activate the immune system in the same way. This fundamental difference has important implications for symptom severity, reaction timing, and potential complications. Food allergies typically produce symptoms within minutes to two hours after exposure to the allergen. This relatively quick onset occurs because the immune system recognizes the food protein almost immediately and responds rapidly. The speed of reaction helps differentiate allergies from intolerances, which typically develop more slowly. The immune nature of food allergies also means reactions can be triggered by even tiny amounts of the offending food. Someone with a severe peanut allergy might react to residue on shared equipment or trace amounts in foods processed in facilities that also handle peanuts. This extreme sensitivity requires vigilant avoidance and careful label reading. Learn more about peanut allergy treatment options available at our clinic. IgE Response Most food allergies involve what’s called an IgE-mediated response. IgE (Immunoglobulin E) is a type of antibody that the immune system produces in response to allergens. During initial exposure to an allergenic food, the immune system of allergic individuals creates specific IgE antibodies against proteins in that food. These antibodies attach to immune cells called mast cells and basophils throughout the body, particularly in areas like the skin, respiratory tract, and gastrointestinal system. When the person eats the allergenic food again, the food proteins bind to these IgE antibodies on the mast cells and basophils, triggering the cells to release histamine and other inflammatory chemicals. This chemical release causes the symptoms of an allergic reaction: hives, swelling, breathing difficulties, digestive upset, and in severe cases, anaphylaxis. The IgE response explains why allergic reactions can be so rapid and severe. Once the immune system has been sensitized and created IgE antibodies to a specific food, subsequent exposures can trigger immediate and sometimes dramatic reactions. This is why someone might eat a food without problems several times before suddenly developing an allergic reaction. The initial exposures sensitized their immune system, and subsequent exposure triggered the allergic response. IgE-mediated food allergies are what allergists test for using skin prick tests and blood tests measuring specific IgE levels. These tests detect the presence of food-specific IgE antibodies, helping confirm true food allergies as opposed to other types of adverse food reactions. What Defines a Food Intolerance Food intolerances are fundamentally different from food allergies, though they can sometimes produce overlapping symptoms. Understanding these differences helps patients avoid unnecessary anxiety while ensuring appropriate management. When comparing food allergy vs food intolerance, the key distinction lies in whether the immune system is involved. Enzyme Deficiency The most common food intolerances result from the body’s inability to properly digest certain components of food due to missing or insufficient digestive enzymes. Unlike food allergies, which involve immune system activation, food intolerances are primarily digestive issues. Lactose intolerance is perhaps the most familiar example. People with lactose intolerance lack sufficient lactase, the enzyme needed to break down lactose (milk sugar) in the digestive tract. When undigested lactose reaches the colon, bacteria ferment it, producing gas, bloating, cramping, and diarrhea. These symptoms, while uncomfortable, don’t involve immune system activation and aren’t life-threatening. Lactose intolerance vs milk allergy represents one of the most common areas of confusion for patients. Someone with lactose intolerance can often consume small amounts of dairy or use enzyme supplements, while someone with a true milk allergy must avoid all milk proteins completely due to the risk of anaphylaxis. The severity of symptoms in food intolerances often relates to the amount consumed, a dose-response relationship. Someone with lactose intolerance might tolerate a small amount of milk in their coffee without problems but experience significant discomfort after drinking a large glass of milk or eating ice cream. This differs from food allergies, where even trace amounts can trigger reactions in highly sensitive individuals. Other examples of enzyme-related intolerances include issues with fructose absorption, where inadequate enzymes or transport proteins prevent proper absorption of this fruit sugar, and sensitivity to food additives like sulfites, which some people cannot metabolize efficiently. These conditions cause digestive discomfort but don’t pose the same emergency risks as food allergies. Digestive Symptoms Food intolerances typically manifest with gastrointestinal symptoms that develop gradually, usually several hours after consuming the problematic food. Common symptoms include: These digestive