Onions
Vegetables — purine content 20mg per 100g
Low Purine
20
mg/100g
Yes — low purine, anti-inflammatory benefits
Diet Advice
Onions are low in purines and contain quercetin, an anti-inflammatory compound that may help with gout. Fits easily into a regular diet.
Recommended Preparation
Cooked in various dishes, raw in salads, or in soups.
Low Purine Alternatives
Data source: USDA FoodData Central; USDA. Purine value: 20mg per 100g of Onions (Low purine, green zone).
See the full purine food classification table for all 142 foods, or read the low purine diet guide.
Frequently Asked Questions
Onions: is it high in purines?
Onions: 20mg of purines per 100g, well inside the low-purine band (under 50mg/100g) used on this site. That makes it a comfortable everyday choice in a gout-friendly diet, though portion size and the rest of the plate still count.
Can I eat Onions during a gout flare?
Yes. At 20mg per 100g the purine load is well inside the low band, so there is no need to leave Onions out during a flare. Light meals and enough fluid matter more here than avoiding a food like this.
What are the best low-purine alternatives to Onions?
There is little to substitute here: the purine content already sits in the low band, so the aim is variety rather than replacement. Other low-purine options include tofu, low-fat dairy and most vegetables.