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Food Sensitivity

What Is Food Sensitivity?
Food sensitivity refers to difficulty digesting certain foods. Unlike food allergies, sensitivities don’t involve the immune system, but they can still cause uncomfortable symptoms. Reactions may be delayed, making it hard to pinpoint the specific food causing the issue.

How Is It Different from a Food Allergy or Intolerance?

  • Food Allergy: Triggers an immune response. Symptoms can be severe and appear quickly.
  • Food Intolerance: Often caused by the lack of an enzyme (e.g., lactose intolerance).
  • Food Sensitivity: Usually causes chronic symptoms like bloating, headaches, or fatigue and may take hours or days to appear after eating the food.

What Are Common Symptoms of Food Sensitivity?
Symptoms vary but may include:

  • Bloating or gas
  • Stomach cramps
  • Diarrhea or constipation
  • Fatigue
  • Brain fog
  • Headaches or migraines
  • Skin issues like rashes or acne
  • Joint pain or inflammation
  • Mood changes or irritability

What Foods Commonly Cause Sensitivity?
Common triggers include:

  • Dairy
  • Gluten (wheat, barley, rye)
  • Eggs
  • Soy
  • Corn
  • Nuts
  • Food additives (like MSG or sulfites)
  • Caffeine
  • Artificial sweeteners

What Causes Food Sensitivity?
It can be caused by:

  • Poor gut health or imbalanced gut bacteria
  • Leaky gut syndrome
  • Overexposure to certain foods
  • Stress and inflammation
  • Enzyme deficiencies
  • Genetics

How Is Food Sensitivity Diagnosed?
There’s no one-size-fits-all test. Common methods include:

  • Elimination diet: Removing suspected foods for a few weeks, then reintroducing them slowly.
  • Food diary: Tracking what you eat and your symptoms.
  • Blood tests: Some labs offer IgG-based food sensitivity tests (though their accuracy is debated).
  • Functional medicine evaluations: These may look deeper into gut health and immune markers.

How Is Food Sensitivity Treated?
The goal is to identify and avoid trigger foods. Treatment may include:

  • Following an elimination diet
  • Supporting gut health with probiotics, prebiotics, or supplements
  • Working with a nutritionist or doctor
  • Managing stress levels
  • Rotating your diet to avoid overexposure to certain foods

Can Food Sensitivities Go Away?
Yes, in some cases. After avoiding the offending food for a period and improving gut health, people may be able to tolerate it again later in small amounts.

When Should I See a Doctor?
See a healthcare provider if you:

  • Experience persistent or worsening symptoms
  • Have digestive discomfort after eating specific foods
  • Notice symptoms interfering with daily life
  • Suspect multiple food sensitivities or underlying conditions like IBS or leaky gut

How Can I Prevent Food Sensitivities?

  • Eat a varied diet to avoid overexposure
  • Support digestive health with fiber-rich foods and probiotics
  • Manage stress and get regular sleep
  • Limit processed foods and additives
  • Listen to your body and track how different foods affect you
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