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Black Olive

Low concern

Black olives are whole-food fruits providing healthy fats (oleic acid) and polyphenols. Commercial black olives are typically high in sodium and may contain ferrous gluconate (E579) for color stability.

Found in

1,089 products

What it is

Ripe olive fruit (Olea europaea), often California-style processed and stabilized with ferrous gluconate.

Whole-food fruit; salty/savory flavor.

Why it's flagged

high sodium from brining
may contain added ferrous gluconate

What regulators actually say

"Canned ripe olives is the food prepared from mature olives... ferrous gluconate may be added to the brine in an amount necessary to fix the color, but not to exceed 0.15 percent."

21 CFR 145.115 - Canned ripe olives — accessdata.fda.gov

Regulatory status

United States — FDA

Standard food (21 CFR 145.115 canned ripe olives).

European Union — EFSA

Standard food.

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