Indigotine (Blue No. 2) (E132)

Names on a label

• E132
• E 132
• Indigotine (Blue No. 2)
• BLUE No. 2
• Indigotine
• Indigo carmine
• 靛蓝
• Indigotina

Labels outside Europe often print the number on its own, without the E.

What it’s used for

The FDA lists these uses in food: color or coloring adjunct.¹

What regulators and scientists say

• EFSA set an acceptable daily intake of 5 mg per kilogram of body weight per day (July 4, 2014). For a 70 kg (154 lb) adult, that’s about 350 mg a day.²
• The FDA permits it as a color additive by regulation (21 CFR 74.102).¹

An acceptable daily intake is, in EFSA’s words, “an estimate of the amount of a substance in food or drinking water that can be consumed daily over a lifetime without presenting an appreciable risk to health.”³