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DOnion
Raw · Alliums
Graded D — 34 out of 100, #42 of 45 vegetables. Clean label carries the score (99/100); micronutrients drags it down (2/100).
The short version: Nobody eats 100g of raw onion, but the quercetin counts anyway.
Nutrition facts
Nutrition Facts
Why it scored 34
Each factor is scored 0–100, then combined with the weights shown. Read the full methodology.
Where it ranks
#42 of 45 in Vegetables. Why per-100-calorie scoring changes everything →
More alliums
Questions people ask
Is Onion healthy?
It grades D — 34 out of 100, #42 of 45 vegetables in our system. Nobody eats 100g of raw onion, but the quercetin counts anyway.
How many calories are in Onion?
4 calories per 100g. For context, that is scored per 100 calories here, which is why energy-dense foods can grade lower than you’d expect.
How is the nutrition score for Onion calculated?
Each factor (protein, fiber, micronutrients, and others depending on the category) is scored 0–100 against a fixed benchmark, then combined with published weights. See the score breakdown above or read the full methodology.