#YellowPrussiate January 2

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In January 2026, many of us will take part in the 30-Day Label Coach4aday Challenge. Each day we will share a label from a food product and share info about one of the ingredients. The goal is simple—read food labels, research unfamiliar ingredients, and become more intentional about what you’re putting into your body, building awareness that can lead to healthier, more mindful eating. Today my post is info on YELLOW PRUSSIATE.

Food labels are an important source of information about calories and the nutritional value of the foods you eat, a crucial tool in building a heart-healthy diet. Today’s examination is on one of the ingredients in Iodized Sea Salt. It is called Yellow Prussiate.

Label-30 Day Challenge Guidelines

As with previous challenges, participants are encouraged to adapt the guidelines to fit their own circumstances. If you can, commit to sharing an ingredient from a food label during the month of January.

1. Locate a label on a food product and research an ingredient you might not be familiar with.  
2. Share with a challenge partner if you have one what that ingredient is.
3. Join the conversation by posting on social media with the hashtag #Coach4adayChallenge

January 2nd-Yellow Prussiate

While exploring an everyday staple like sea salt, I didn’t expect to see yellow prussiate listed as an ingredient. Learning it contains trace amounts of cyanide was initially alarming, until research confirmed it is considered safe. I also discovered that not all sea salts use this additive.

Yellow prussiate of soda (sodium ferrocyanide, E535) is added to some sea salts as an anti-caking agent, and it is considered safe at the very low levels used in food. Regulatory agencies such as the FDA and EFSA have approved it because the compound is chemically stable and does not release toxic cyanide under normal cooking or digestive conditions.

There are brands of sea salt that do not any additives. Terms like “unrefined,” “no additives,” and “pure sea salt” on packaging are good indicators a product does not contain yellow prussiate.