| 70 Products | May 2025 | May 2026 | Change |
| Waitrose Ltd Waitrose Onions per kg () | £0.35 | £0.46 | + £0.11 31.4% increase |
| | £0.15 | £0.16 | + £0.01 6.7% increase |
| | £0.55 | £0.75 | + £0.20 31.4% increase |
| Sainsbury's Diced Onions Inspired to Cook (200g) | £0.65 | £0.70 | + £0.05 7.7% increase |
| | £0.50 | £0.60 | + £0.10 20% increase |
| | £0.80 | £0.80 | £0.00 7.7% increase |
| | £9.51 | £9.51 | £0.00 No change |
| | £0.95 | £0.95 | £0.00 No change |
| | £18.07 | £18.07 | £0.00 No change |
| Tesco Organic Brown Onions (750g) | £1.60 | £1.65 | + £0.05 3.1% increase |
| | £1.60 | £1.65 | + £0.05 3.1% increase |
| Waitrose Ltd Duchy Organic Onions (750g) | £1.53 | £1.80 | + £0.27 17.6% increase |
| | £1.53 | £1.80 | + £0.27 17.6% increase |
| Waitrose Ltd Waitrose Large Onions () | £1.50 | £1.60 | + £0.10 6.7% increase |
| | £1.50 | £1.60 | + £0.10 6.7% increase |
| Tesco Brown Onions Loose () | £0.12 | £0.12 | £0.00 No change |
| | £0.12 | £0.12 | £0.00 No change |
| Stamford Street Co. Onions () | £0.80 | £0.85 | + £0.05 6.2% increase |
| | £0.80 | £0.85 | + £0.05 6.2% increase |
| ASDA 3 Crunchy & Fragrant Brown Onions () | £0.95 | £0.95 | £0.00 No change |
| | £0.95 | £0.95 | £0.00 No change |
| Waitrose Ltd Waitrose Red Onions () | £1.20 | £1.20 | £0.00 No change |
| | £1.20 | £1.20 | £0.00 No change |
