| 10 Products | Aug 2025 | Aug 2026 | Change |
| Stamford Street Co. Onions () | £0.80 | £0.85 | + £0.05 6.2% increase |
| | £0.80 | £0.85 | + £0.05 6.2% increase |
| Waitrose Ltd Waitrose Onions per kg () | £0.75 | £0.79 | + £0.04 5.3% increase |
| | £0.75 | £0.79 | + £0.04 5.3% increase |
| | £0.99 | £0.95 | - £0.04 -4% decrease |
| | £0.99 | £0.95 | - £0.04 -4% decrease |
| SO Organic|Sainsbury's Sainsbury's Onions SO Organic (750g) | £1.60 | £1.65 | + £0.05 3.1% increase |
| | £1.60 | £1.65 | + £0.05 3.1% increase |
| Sainsbury's Diced Onions Inspired to Cook (200g) | £0.50 | £0.60 | + £0.10 20% increase |
| | £0.50 | £0.60 | + £0.10 20% increase |
| Sainsbury's Onions Loose () | £0.99 | £0.99 | £0.00 No change |
| | £0.99 | £0.99 | £0.00 No change |
| Sainsbury's Red Onions (1kg) | £0.95 | £0.95 | £0.00 No change |
| | £0.95 | £0.95 | £0.00 No change |
| Stamford Street Co. Red Onions () | £0.70 | £0.70 | £0.00 No change |
| | £0.70 | £0.70 | £0.00 No change |
| SO Organic|Sainsbury's Sainsbury's Red Onions SO Organic (500g) | £1.40 | £1.45 | + £0.05 3.6% increase |
| | £1.40 | £1.45 | + £0.05 3.6% increase |
| Sainsbury's Brown Onions () | £0.95 | £0.95 | £0.00 No change |
| | £0.95 | £0.95 | £0.00 No change |
