uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.


CL Answers (27)

Search term may appear only in full report available to members. Sign in or Join now for full access.

Recalls & Warnings (139)

Search term may appear only in full report available to members. Sign in or Join now for full access.

Clinical Updates (9)

Search term may appear only in full report available to members. Sign in or Join now for full access.


Sulfa Allergy to NAC?

Can people with a sulfa allergy (an allergy to sulfonamide drugs) use NAC, which contains sulfur? Find out in the Concerns and Cautions section of our N-Acetylcysteine Supplements Review.

Vitamin D and Allergy

Vitamin D is known to modulate the immune system. Having sufficient levels is associated with reduced risk of allergy and asthma. A recent study showed that giving vitamin D to pregnant women and their infants resulted in fewer infants being allergic to house dust mites and needing to see a doctor for asthma. For details, see "Allergy," as well as "Asthma," in the What It Does section of the Vitamin D Supplements Review >>

Curcumin for Allergy

A recent pilot study suggests that curcumin can significantly reduce symptoms of seasonal allergy. Get the details in the "What It Does" section of the Turmeric/Curcumin Supplements Review >>

Fish Collagen Allergy

Be aware that some people may be allergic to fish collagen even if they don't respond to common fish allergy tests, according to a recent study. Get the details in the Concerns and Cautions section of the Collagen Supplements Review. Also see our Top Picks for collagen supplements for skin and for joints.

Preventing Eczema with Probiotics

Allergy experts recently concluded that, when there is a family history of allergy, probiotics (taken by the mother or child) can reduce the risk of the child having eczema. For more information about this and other uses of probiotics — as well as our test reviews of products, see the Probiotic Supplements Review >>

Probiotic for Allergy

A recent study showed that taking a probiotic during allergy season reduced symptoms more than did a placebo — although not by much. For details, see the "What It Does" section of the Probiotic Supplements Review >>

Fish Oil During Pregnancy Reduces Allergy in Infants

Last year we reported important findings from a study of fish oil given to pregnant women. A further analysis of that study shows another benefit of daily fish oil for pregnant women -- their babies have nearly a 40% lower risk of egg allergies. A lower risk of eczema was also found, although this association did not hold after adjusting the data for certain factors. See the update to the Fish Oil Supplements Review, which includes details on this study, the type and amount of fish oil taken, and our latest product tests.

Vitamin D and Allergy?

Recent analyses of data from thousands of individuals across the U.S. show an association between serum vitamin D levels and certain allergies. The association was found in children and adolescents for 11 different allergens, but no association was found in older individuals. See the Vitamin D Product Review for the types of allergies and level of vitamin D at which risk was reduced. More >>

Probiotic Helps a Little with Allergy

Among people already taking a daily antihistamine, adding a daily probiotic provided a small, additional benefit -- particularly with ocular (eye) symptoms, according to a new study.  For more information about the probiotic used, and our tests of probiotic supplements, see the updated Probiotic Supplements Review >>