Pickled onions are commonly sold as pieces, shaved, or sliced and are typically ready-to-use.
Labels in the category include gluten-free, vegan, kosher, and notes about no artificial colors or flavors; some listings also state they do not contain any of the nine major allergens.
Many pickled onions are labeled ready-to-eat or ready-to-use. Others are sold in shelf-stable jars, while a smaller number are offered as mixed or freshly prepared options.
Some product listings show 20 calories per serving. For example, at least one jar that listed 20 calories also included labels such as gluten-free and no artificial colors or flavors.
Common single-jar sizes include 8 oz and 16 fl oz; larger pack or case totals seen in listings include 48 oz, 65.4 oz, and 72 oz.
