Food dye allergies have become increasingly common in the last decade or so. This is both because of the prevalence of food dye coloring used in food, as well as better techniques to determine allergies and sensitivities to food dye.
Signs of an allergic reaction or sensitivity to food dye can include hyperactivity, rashes, welts, swelling and puffiness, and in severe cases, even asthma and anaphylaxis. If you suspect a food allergy, you should always consult your physician.
The most common food dye allergy and is red dye #2. However there are also other dye is which are attributed to larger numbers of allergies, including red food dye #40, yellow food dye #5 and blue food dye #1.
You will find specifics on what food dye number is used in the food you purchased. It is listed in the ingredients list when you scan the ingredients and nutritional information on the packaging. The same goes for cosmetics you purchase.
These are the current food dye additives that have been certified for food use in the US and what their common uses are own for him
FD&C Blue No.1
Brilliant Blue FCF Bright blue
Beverages, dairy products powders, jellies, confections, condiments, icings, syrups, extracts
FD&C Blue No.2
Indigotine Royal Blue
Baked goods, cereals, snack foods, ice cream, confections, cherries
FD&C Green No.3
Fast Green FCF Sea Green
Beverages, puddings, ice cream, sherbert, cherries, confections, baked goods, dairy products
FD&C Red No.40
Allura Red AC Orange-red
Gelatins, puddings, dairy products, confections, beverages, condiments
FD&C Red No.3
Cherries in fruit cocktail and in canned fruits for salads, confections, baked goods, dairy products, snack foods
FD&C Yellow No.5
Tartrazine Lemon Yellow
Custards, beverages, ice cream, confections, preserves, cereals
FD&C Yellow No.6
Sunset Yellow Orange
Cereals, baked goods, snack foods, ice cream, beverages, dessert powders, confections