Robert F Kennedy Jr left social media users puzzled after he was seen putting a mysterious blue dye in his drink in a video posted on X, formerly known as Twitter, this week.

Methylene blue is a synthetic compound with a deep blue color that has been used for over a century in various medical, ...

Now that the U.S. Food and Drug Administration has banned Red Dye No. 3, artificial food dyes are under increasing scrutiny.

The US Food and Drug Administration revoked its authorization of food coloring Red No. 3 on Jan. 15, but the chemical's days ...

What foods and drinks look like — the colors we see before the first morsels or sips hit our tastebuds — have mattered to ...