Friday, January 16, 2015

Food Preservative Induced Allergy

Remember the "salad bar" syndrome of the 1980’s caused by sulfite sprays used on vegetables to keep them "fresh" longer? How many of us were caught unaware? I was. All of a sudden my throat and bronchial tubes were swelling, my head was throbbing, and my heart racing. Worst of all I didn’t know why.

I knew that I have a tendency to food and environmental sensitivities (allergies) and that drinking strong black coffee would open up my bronchial tubes—which it did.

The FDA banned the use of sulfites on raw fruits and vegetables in 1986. They also require manufacturers to list the sulfite and nitrate compounds used on product labels.

Sulfite and nitrate compounds are completely different compounds but both are still used in food processing as preservatives and to eliminate bacterial contamination. Manufacturers justify their use of sulfites and nitrates by saying these compounds are found naturally in plants. However, natural plants are synergistic and contain balancing components, such as vitamin C.

This allergy isn't actually an allergy to the natural element sulfur, or the nitrate salts. It is a reaction to preservatives in foods. When the body comes in contact with the allergen, it sends a strong inflammatory response known as an allergic reaction. A person can develop sulfite or nitrate sensitivity any time in life.

The FDA estimates that one out of 100 people is sensitive to sulfites compounds. Exposure to sulfites and nitrates creates an inflammatory response that causes an allergic reaction. They produce symptoms within minutes of ingestion in people with chemical sensitivities. Symptoms range from mildly discomforting to fatal.

Symptoms of Preservative Sensitivity/Allergy

Headaches--occur after the consumption of foods that contain nitrates or sulfites
Hives--outbreaks of red or pale bumps or welts on the skin which appear suddenly after consuming nitrates and may show up anywhere on the body, range in size from a pencil eraser to a dinner plate, and subside in a few hours to a day. 


Rhinitis--an inflammation or irritation of the nasal passages, sneezing, itching and a runny nose, or a feeling of blockage or congestion. 


Asthma--inflammation of the lungs or breathing passages due to an allergy. If you experience congestion in the chest with difficult breathing or coughing this points to a sulfite or nitrate allergy. 



Sulfites

Sulfites are counted among the top nine food allergens. Sulfites can be found in a variety of cooked and processed foods. They also occur naturally in the process of making wine and beer. They are also known to initiate migraine headaches.

Sulfite preservatives are used to prevent or reduce discoloration of processed fruits and vegetables, prevent black spots on shrimp and lobster, inhibit the growth of microorganisms in fermented foods such as wine, condition dough, and maintain the stability and potency of certain medications. 
Read labels and avoid foods that are likely to contain sulfites.

Avoid:
wine, baked goods, soup mixes, jams, canned vegetables, pickled foods, gravies, dried fruit, potato chips, trail mix, beer, wine, vegetable juices, bottled lemon juice, bottled lime juice, tea, condiments, molasses, fresh or frozen shrimp, guacamole, maraschino cherries, and dehydrated, pre-cut, or peeled potatoes.

U.S. labeling regulations require products to list the presence of sulfites in foods only when they are specifically added as a preservative. In food processing, added preservative are only required to be listed when there are more than 10 parts per million (ppm) in the finished product. Sulfities may be in processed foods and not listed in the label. Choose minimally processed or frozen foods.

Most beers no longer contain sulfites, although some alcoholic ciders contain them. Although shrimp are sometimes treated with sulfites on fishing vessels, the chemical may not appear on the label. http://en.wikipedia.org/wiki/Sulfite

Nitrates

Nitrate preservatives are used in food processing to prevent botulism, enhance flavor and to preserve and colorize foods. Nitrates are found in cured and processed meats such as hot dogs, bologna, sausage and bacon.

According to the Asthma and Allergy Foundation of America, individuals with nitrate allergies may experience itchy hives, swelling and redness, fatigue and headache, congestion and asthma complications. Allergy symptoms can be treated with topical and oral antihistamines and inhalers to reduce inflammation and irritation.


However, the best way to avoid allergic reactions is to eliminating nitrate containing and processed foods from the diet.

Nitrate additives are associated with a range of symptoms such as headaches, irritable bowel symptoms, itchy rashes, asthma, children’s behaviour problems, difficulty falling asleep and waking frequently at night according to the Food Intolerance Network.

The World Cancer Research Fund (WCRF), August 2009, issued a warning and suggestion to parents to limit children’s intake of preservatives to 70 grams of processed meat per week. The WCRF report Stopping cancer before it starts, states there is strong evidence that red and processed meats causes bowel cancer and there is no amount of processed meat that does not increase cancer risk. Nitrates levels are increasing in our food supply due to overuse of artificial fertilizers.

Nitrates are naturally occurring minerals and small amounts are needed for digestion. However, chemically it makes no difference whether these additives are natural or synthetic. Nitrates are not carcinogenic but can be converted to nitrites in the gut and saliva.

These nitrates and nitrites readily combine with naturally occurring food amines to form highly carcinogenic chemicals called nitrosamines. Processed meats that contain nitrate and nitrite additives are naturally very high in amines, which are formed by protein breakdown in foods such as processed meat, fish and aged cheese.


A recent study published by researchers at Rhode Island Hospital in the US reported a link between higher levels of nitrates and increased deaths from certain diseases including Alzheimer's, diabetes mellitus and Parkinson's. “We have become a 'nitrosamine generation”, said lead researcher Professor Suzanne de la Monte. “In essence, we have moved to a diet that is rich in amines and nitrates, which lead to increased nitrosamine production.”



If you have a sulfite or nitrate allergy be sure to read the ingredient label on processed foods. When taking a new medication pay attention for symptoms of allergic reaction. These potentially toxic and harmful substances can cause nausea or diarrhea and precipitate asthma attacks in sensitive individuals. 

http://www.foodsmatter.com/allergy_intolerance/miscellaneous/articles/nitrites_bacon.html


http://www.webmd.com/allergies/guide/sulfite-sensitivity

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