A-Z Indexes

Food

Health Guides

Health News

Allergies and Sensitivities

Also indexed as:Sensitivities and Allergies, Chemical Allergies
Take action to control your allergies. Breathe easy by learning more about how to manage symptoms. According to research or other evidence, the following self-care steps may be helpful.
SupplementAmountWhy
Probiotics

(Food Allergies)
2.6 billion organisms per day for infants2 stars[2 stars]
Probiotics such as Lactobacillus GG may improve digestion in people with food allergies, helping the intestinal tract control allergen absorption and changing immune system responses to foods.
Thymus Extracts
120 mg per day of thymomodulin2 stars[2 stars]
Thymomodulin, a special preparation of the thymus gland of calves, has been shown to prevent allergic reactions to food in a double-blind study of allergic children.
Betaine Hydrochloride

(Food Allergies)
Refer to label instructions 1 star[1 star]
Hydrochloric acid secreted by the stomach helps to digest protein, and may theoretically help break down food allergens to smaller molecules that are not allergenic.
Digestive Enzymes

(Food Allergies)
Refer to label instructions 1 star[1 star]
Proteolytic enzymes may theoretically reduce allergy symptoms by breaking down undigested protein to sizes that are too small to cause allergic reactions.
Flavonoids
Refer to label instructions 1 star[1 star]
Test tube and animal studies have found some effects from natural antihistamines such as flavonoids, though no clinical research has shown whether these substances can specifically reduce allergic reactions.
Quercetin
Refer to label instructions 1 star[1 star]
Test tube and animal studies have found some effects from natural antihistamines such as the flavonoid quercetin, though no clinical research has shown whether these substances can specifically reduce allergic reactions.
  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by some in the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

Copyright © 2025 TraceGains, Inc. All rights reserved.

Learn more about TraceGains, the company.

The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.