The Big Story Listening to your gut: the truth behind the red dye no. 3 ban and beyond
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Jan 27, 2025 In this engaging discussion, Dr. Emma Allen-Vercoe, a Professor and Canada Research Chair in Molecular and Cellular Biology, unpacks the recent FDA ban on red dye No. 3 and its implications for human health. She dives into the contrasting safety assessments and public perceptions of synthetic dyes and advocates for natural alternatives. The conversation also highlights the complexities of regulatory research and the essential role of gut microbes, offering insights on mindful eating and the growing importance of understanding our food choices.
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Red Dye No. 3
- Red Dye No. 3, known as Erythrocyne, is a synthetic food dye based on iodine.
- It's permitted in Canada but less common than other red dyes.
FDA Ban
- The FDA's ban stems from a legal challenge, not new research, focusing on rat studies showing a rare thyroid cancer link.
- This cancer mechanism doesn't exist in humans, so the risk is minimal.
Health Canada's Stance
- Health Canada won't ban Red Dye No. 3, citing a 2018 review deeming it safe.
- This decision highlights differing regulatory approaches between Canada and the US.