Omega-3s in the levels present in Chewies are not known to cause side effects. All ingredients in this product are GRAS (Generally Considered as Safe) by the Food and Drug Administration (FDA). However, in very rare instances, individuals may be sensitive or allergic to some nutrients or may experience stomach discomfort.
This product is free of the following allergens: dairy, eggs, shellfish, GMO, peanuts, wheat/gluten, soy protein, and yeast.