Eww.
Activated charcoal (usually sourced from coconut shells) has become the trendy food coloring in a bunch of things. That is allowed in the US and this is just a variation on it. But activated charcoal is used for absorbing meds when you take an overdose, its in my air filters and so on... So if you eat it, best make sure its not on a regular basis or near any essential meds!
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