Food Allergies, Intolerances and Other Reactions

“One person’s food is another person’s poison.” Lucretius

There are many different ways that the immune system can react to food. An IgG (Immunoglobulin type G) reaction is a delayed, systemic inflammatory response to a food, which can show up as behavior problems in children – or pain, fatigue and irritability in adults, hours or even days after eating the offending food, making it very difficult to pinpoint which food is causing the problem.

An example of this is a child in my practice that would sometimes have unexplained tantrums. The IgG food test showed a strong reaction to pork. The mother realized that the child often had these tantrums in the afternoons on the days that she fed him bacon for breakfast. When she stopped the bacon, the tantrums went away. An adult example is a mom who tested strongly reactive to wheat. She realized that if she ate wheat toast for breakfast, she developed pain in her hips and other joints later that day. Stopping the wheat toast helped to alleviate her joint pain.

An IgG reaction to food is called a food intolerance instead of a true food allergy, but it can cause many symptoms just the same. Many chronic systemic illnesses are worsened by anything that promotes inflammation, so removing IgG reactive foods can improve inflammation in the brain and GI tract, as well as the rest of the body. Most doctors do not bother to test for IgG food intolerances, so this problem is often overlooked. However, chronic untreated food reactions can wear out and weaken the immune system over time, leaving the body more vulnerable to infections and eventually possibly even cancer.

A simple blood test can help identify the IgG reactive foods which are causing challenging behaviors, worsening gut, brain, and body inflammation, and making people feel bad. When the offending foods are removed, improvements are often seen in areas such as attention, cognition, behavior, and sleep.

Below is a list of some of the symptoms that can be caused by hidden food intolerances:

  • Chronic coughing
  • Gagging
  • Ear infections
  • Earaches
  • Hearing loss
  • Stuffy nose
  • Sinus problems
  • Hay fever
  • Sneezing attacks
  • Excessive mucous
  • Watery eyes
  • Itchy eyes
  • Swollen eyelids
  • Dark circles
  • Blurred vision
  • Acne
  • Hives
  • Rashes
  • Hair loss
  • Flushing/hot flashes
  • Excessive sweating
  • Mood swings
  • Anxiety, fear
  • Irritability, anger
  • Depression
  • Aggressiveness
  • Nervousness
  • Chest congestion
  • Asthma, bronchitis
  • Shortness of breath
  • Difficulty breathing
  • Binge eating
  • Cravings
  • Excessive weight
  • Compulsive eating
  • Water retention
  • Underweight
  • Poor memory
  • Confusion
  • Poor concentration
  • Stuttering, stammering
  • Learning disabilities
  • Pain in joints
  • Arthritis
  • Stiffness
  • Limitation of movement
  • Aches in muscles
  • Feeling of weakness
  • Headaches
  • Faintness
  • Dizziness
  • Insomnia
  • Irregular heartbeat
  • Rapid heart
  • Chest pains
  • Frequent illness
  • Urgent urination
  • Genital itch
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4463 Stoneridge Drive
Pleasanton, CA 94588
Phone: 925-846-8000
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