Although its acid (sulfurous acid) is elusive, [1] its salts are widely used. Sulfites are substances that naturally occur in some foods and the human body. They are also used as regulated food …

Dec 8, 2025 · Sulphites, often referred to as sulfites, are chemical compounds derived from sulfur dioxide that serve as common food and pharmaceutical additives. They are widely …

Oct 1, 2020 · Most of the packaged foods we eat need some type of food additives to keep the foods from spoiling or to improve the flavor or appearance. Sulfites are sulfur-based food …

Oct 17, 2025 · “Sulfites are chemical compounds that contain a sulfur ion,” explains Amy Davis, RD, LDN, registered dietitian at FRESH Communications. Sulfites occur naturally in some …

What is a sulfite allergy or sulfite sensitivity? Sulfite allergies and sensitivities are conditions that most often affect people with asthma.

Dec 10, 2025 · A sulfite allergy, or more accurately, a sulfite sensitivity, is an abnormal response to sulfites naturally found in certain foods and used in certain preservatives and additives.

People who have low levels of an enzyme called sulphite oxidase may have too much sulphite in their bodies, causing their airways to tighten. Sulphites might trigger the release of chemicals …

Health Canada includes sulphites (a food additive) as a priority allergen. Sulphites do not cause true allergic reactions, and are generally grouped with the priority food allergens because …

Aug 14, 2022 · It’s rare, but some people (about 1 in 100, according to the FDA) are sensitive to these compounds. Their reaction can range from mild to life-threatening. Sulfites aren’t used …

A low sulphite diet would be recommended if a sulphite sensitive patient is hospitalised in addition to avoidance of pharmaceutical products containing sulphites wherever possible.