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Onion

Image: Open Food Facts (CC BY-SA 3.0)

Common questions

Is Onion healthy?

Onion scores 94/100 on Scout's independent analysis of ingredients, additives, and lab results — one of the stronger scores in Scout's catalog. Onions are a whole food that are minimally processed, retaining their natural nutrients and antioxidants.

How processed is Onion?

Onion is NOVA Group 1: Unprocessed or Minimally Processed Foods.

Which ingredients drive Onion's score?

In Scout's ingredient-by-ingredient analysis, Onion counts in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Onion

94 Excellent

Analysis updated September 2026 · How Scout scores

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At a glance

Beneficial ingredients 1
Harmful ingredients 0
Category Vegetables
Summary

Onions are a whole food that are minimally processed, retaining their natural nutrients and antioxidants. They contain beneficial compounds like quercetin, which have anti-inflammatory and immune-boosting properties, contributing to their high health rating.

Key ingredients 1

Onion
Good

Onions are a whole food that provide essential nutrients and antioxidants. They contain compounds like quercetin which have anti-inflammatory and immune-boosting properties. Being unprocessed, they retain all their natural benefits.

Benefits

Rich in antioxidants and vitamins, onions support heart health and may reduce inflammation. They also provide dietary fiber which aids in digestion.

See more about Onion →

Processing

Group 1 · Minimally processed

Unprocessed or Minimally Processed Foods

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