Food dye – News, Research and Analysis – The Conversation

Look out for Red 3, FD&C Red No. 3, erythrosine or E127 in the ingredients list of your favorite processed foods. Anhelina Chumak/iStock via Getty Images Plus

January 23, 2025

FDA bans Red 3 dye from food and drugs – a scientist explains the artificial color’s health risks and long history

Lorne J. Hofseth, University of South Carolina

Over 35 years after the first study linking Red 3 to thyroid cancer in rats was published, the US is beginning to wean it out of foods and drugs.

Early-onset colorectal cancer rates have been increasing since the 1990s. kajakiki/E+ via Getty Images

December 9, 2021

Colorful sweets may look tasty, but some researchers question whether synthetic dyes may pose health risks to your colon and rectum

Lorne J. Hofseth, University of South Carolina

Sixty percent of the Standard American Diet consists of ultra-processed food, which isn’t great for colon health. Researchers are looking into whether artificial food colors play a role.

Through the wonders of chemistry, molecules can be rearranged to completely transform color. Erick Leite Bastos

April 3, 2020

Blue dye from red beets – chemists devise a new pigment option

Erick Leite Bastos, Universidade de São Paulo (USP)

A simple chemical reaction turns the red pigment of beets into a new, nontoxic blue dye.

December 12, 2016

Simply red: why one colour became so powerful

Spike Bucklow, University of Cambridge

Red is the colour of life, of danger and of good luck.

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