A popular US blueberry muffin product has come under online scrutiny after consumers raised concerns over its use of artificial colors, sweeteners, and other additives.

Thomas’ Blueberry English Muffins have gained attention after ingredient scans shared on social media highlighted the presence of synthetic food dyes, including Blue 1 Lake, Blue 2 Lake, and Red 40 Lake, along with sucralose.

The product’s ingredient list includes 22 components, including dried blueberry pieces, sugar, soybean oil, preservatives, gums, and added colors used to enhance appearance.

Critics online questioned why a blueberry product requires multiple artificial dyes, while supporters of stricter food standards compared ingredient rules across different countries.

The synthetic colors found in the product have faced regulatory debate in the US, with authorities reviewing the use of certain artificial dyes in food products. Sucralose has also been subject to ongoing discussion among researchers and health experts.

Thomas’ English Muffins are manufactured by Bimbo Bakeries USA, which markets its products as being made with quality ingredients.

However, claims circulating online that the product is completely “banned in many countries” need context, as food regulations vary by market and restrictions on individual ingredients do not always mean a product itself is prohibited.

The controversy highlights growing consumer attention toward food labels, artificial additives, and differences in ingredient standards between countries.