Red meat allergy caused by ticks

Six foods that doctors avoid: including a popular “healthy” food choice Health professionals have revealed which foods they typically avoid, some of which might surprise even the most health-conscious individuals. While moderation is often emphasized over complete avoidance, certain items are regularly steered clear of due to their potential impact on digestion, long-term health risks, and other concerns. Among these are highly processed protein powders, red meat, processed meats such as sausages, bacon, and salami, fried foods, sugared and carbonated beverages, and refined grains. These items are linked to issues ranging from bloating and digestive discomfort to more serious conditions like colorectal cancer and heart disease. Highly processed protein powders, despite being marketed as healthy options, can contain numerous additives that contribute to gas and bloating. Dr. Harmony Allison, a gastroenterologist at Tufts Medical Center, advises against consuming heavily processed protein powders. She suggests obtaining the same amount of protein from less processed sources such as milk, peanut butter, nuts, and seeds. Red meat, particularly cuts used for burgers, has been associated with an increased risk of colorectal cancer and the formation of polyps. Dr. Reezwana Chowdhury from Johns Hopkins University warns that both red and processed meats are linked to higher cancer risks. Red meat is also high in saturated fats, and the quantity consumed plays a crucial role in this association. Processed meats like sausages, bacon, and salami are of particular concern. Dr. Rabia De Latour from NYU Grossman School of Medicine avoids them regularly. The International Agency for Research on Cancer (IARC), under the World Health Organization, classifies processed meats as Group 1 carcinogens. Studies show a link between frequent consumption of red and processed meats and an elevated risk of colorectal cancer. Substances such as nitrates and nitrites found in these products can transform into compounds associated with carcinogenic effects within the body. Fried foods, while popular among many, are discouraged by experts. Dr. Mahmoud Ghannoum, a researcher in gut microbiome studies, explains that eating foods cooked in frying oil can negatively affect the gut microbiome. Such changes may lead to other health problems, including cardiovascular diseases. Carbonated and sweetened drinks are also on the list. Their regular consumption is tied to chronic illnesses such as diabetes and cardiovascular diseases. Dr. Simon C. Matthews, a gastroenterologist at Johns Hopkins University, notes that these drinks can cause bloating, cramps, and acid reflux, especially when containing caffeine. Refined grains, commonly found in white bread, are another item of concern. Shilpa Grover, director of the oncology-gastroenterology program at Brigham and Women’s Hospital, points out that diets rich in red and processed meats along with refined grains are associated with a higher risk of diverticulitis, an inflammation of pouches in the colon wall. Experts emphasize that not all foods previously linked to digestive issues are necessarily problematic. For example, nuts, corn, and popcorn have not shown increased risks for diverticulitis or bleeding according to research. Avoiding all favorite foods is not necessary, as experts suggest balance rather than complete elimination. A different angle comes from an allergy case involving red meat caused by ticks. Journalist Gašper Jakomin recalls his first allergic reaction three years ago, describing symptoms like redness and itching, primarily around the waist area. Initially, he suspected seawater or sun exposure. He also had digestive issues, leading doctors to consider a stomach infection before further tests revealed a different issue, respiratory distress. After experiencing severe symptoms, he was taken to the emergency room, where doctors initially thought he was overly anxious and prescribed medication. Following a detailed conversation with an allergist who mentioned a tick bite, blood tests confirmed alpha-gal syndrome, a condition triggered by a sugar molecule present in the meat of most mammals and saliva from certain ticks, which can be transferred through a bite. Dr. Mitja Košnik, an allergist, internist, and pulmonologist at Klinika Golnik, explains that the immune system must come into contact with an allergen to produce antibodies, which can trigger a reaction upon subsequent exposure. Approximately one in fifty people have these antibodies, but only about ten percent experience symptoms, with ninety percent showing no issues. Compared to other food allergies, this one is somewhat delayed, appearing anywhere from six to eight hours later or even the following day, making it difficult to trace back to specific meals. Dr. Košnik mentions that if anaphylaxis occurs several hours after the last meal, it could be related to this allergy. Even a single tick bite can trigger a reaction to all red meat, with severity depending on the amount of allergen. Dr. Košnik explains that ground beef contains more of this allergen, lowering the threshold for reactions. Larger portions or fatty meals increase absorption, potentially causing stronger responses. Gašper now avoids meat and products containing animal-derived ingredients, which isn't too hard at home. However, he must check labels carefully for emulsifiers and thickeners, such as gelatin and E471, commonly found in sweets and snacks. He also needs to be cautious in restaurants, ensuring staff are aware of his restrictions. He carries antihistamines and an adrenaline auto-injector for anaphylaxis. Since developing the allergy, his reactions to tick bites have become more severe, with swelling, redness, and itching lasting months. Some patients may experience anaphylaxis immediately after a tick bite, though this is rare. Gašper will be monitored for two years, as the allergy may eventually resolve after several years.