| 100 Products | Sep 2024 | Sep 2025 | Change |
| Kellogg's Variety Pack Cereal (196g) | £2.46 | £2.77 | + £0.31 12.6% increase |
| | £1.25 | £1.98 | + £0.73 58.4% increase |
| | £2.50 | £3.15 | + £0.65 36.7% increase |
| | £2.30 | £3.15 | + £0.85 36.6% increase |
| | £2.38 | £3.00 | + £0.62 33.6% increase |
| | £2.90 | £3.00 | + £0.10 26% increase |
| | £1.50 | £1.75 | + £0.25 24.8% increase |
| | £2.45 | £3.15 | + £0.70 25.7% increase |
| | £1.69 | £2.00 | + £0.31 25% increase |
| | £2.50 | £1.75 | - £0.75 18.1% decrease |
| | £2.49 | £2.49 | £0.00 15.5% increase |
| | £5.05 | £5.05 | £0.00 12.6% increase |
| Kellogg's Crunchy Nut Fruit & Nut Breakfast Granola (380g) | £4.06 | £3.47 | - £0.59 -14.5% decrease |
| | £2.90 | £3.29 | + £0.39 13.4% increase |
| | £3.30 | £3.30 | £0.00 6.5% increase |
| | £3.30 | £2.75 | - £0.55 -1.9% decrease |
| | £3.29 | £3.30 | + £0.01 -1.3% increase |
| | £2.50 | £3.00 | + £0.50 2.3% increase |
| | £2.90 | £3.29 | + £0.39 4.3% increase |
| | £2.49 | £2.49 | £0.00 3.7% increase |
| | £2.98 | £3.45 | + £0.47 5.1% increase |
| | £2.90 | £3.30 | + £0.40 6.1% increase |
| | £13.99 | £6.49 | - £7.50 -14.5% decrease |
| Kellogg's Corn Flakes Breakfast Cereal (450g) | £2.17 | £2.17 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| | £2.35 | £2.35 | £0.00 No change |
| | £1.89 | £1.89 | £0.00 No change |
| | £2.20 | £2.20 | £0.00 No change |
| | £1.99 | £1.99 | £0.00 No change |
| Kellogg's Pop-Tarts Frosted Chocotastic Toaster Pastries (48g) | £3.39 | £3.48 | + £0.09 2.7% increase |
| | £3.00 | £2.98 | - £0.02 -0.7% decrease |
| | £2.69 | £3.00 | + £0.31 4.9% increase |
| | £2.50 | £3.00 | + £0.50 9.5% increase |
| | £2.85 | £3.00 | + £0.15 8.7% increase |
| | £3.10 | £3.10 | £0.00 6.7% increase |
| | £3.00 | £3.00 | £0.00 5.2% increase |
| | £2.69 | £2.69 | £0.00 4.9% increase |
| | £3.03 | £3.00 | - £0.03 3.8% decrease |
| | £2.59 | £2.59 | £0.00 3.5% increase |
| | £8.48 | £8.48 | £0.00 2.7% increase |
| Kellogg's Crunchy Nut Chocolate Hazelnut Granola (380g) | £3.39 | £3.65 | + £0.26 7.7% increase |
| | £3.29 | £3.29 | £0.00 No change |
| | £3.30 | £3.30 | £0.00 No change |
| | £3.30 | £3.30 | £0.00 No change |
| | £3.29 | £3.30 | + £0.01 No change |
| | £2.50 | £3.80 | + £1.30 8.3% increase |
| | £2.90 | £3.29 | + £0.39 9% increase |
| | £2.49 | £2.49 | £0.00 8% increase |
| | £2.98 | £3.45 | + £0.47 9% increase |
| | £2.90 | £3.30 | + £0.40 9.7% increase |
| | £6.99 | £6.99 | £0.00 7.7% increase |
| Kellogg's Frosties Cereal 500g (470g) | £2.77 | £2.79 | + £0.02 0.7% increase |
| | £3.30 | £3.30 | £0.00 No change |
| | £3.30 | £3.30 | £0.00 No change |
| | £3.30 | £3.50 | + £0.20 2.1% increase |
| | £3.30 | £3.30 | £0.00 1.5% increase |
| | £3.75 | £3.75 | £0.00 1.2% increase |
| | £2.50 | £2.50 | £0.00 1.2% increase |
| | £2.50 | £2.50 | £0.00 0.6% increase |
| | £0.50 | £0.50 | £0.00 0.7% increase |
| | £3.30 | £3.30 | £0.00 0.7% increase |
| | £1.99 | £1.99 | £0.00 0.7% increase |
| Kellogg's Coco Pops Chocolate Breakfast Cereal () | £4.92 | £4.95 | + £0.03 0.6% increase |
| | £3.75 | £3.75 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| | £4.00 | £4.25 | + £0.25 2% increase |
| | £3.99 | £3.99 | £0.00 1.5% increase |
| | £4.50 | £4.50 | £0.00 1.2% increase |
| | £4.50 | £4.50 | £0.00 1.2% increase |
| | £4.75 | £4.75 | £0.00 1% increase |
| | £4.00 | £4.00 | £0.00 0.7% increase |
| | £3.74 | £3.74 | £0.00 0.5% increase |
| | £11.99 | £11.99 | £0.00 0.6% increase |
| Kellogg's Special K Red Berries Cereal (330g) | £5.17 | £3.22 | - £1.95 -37.7% decrease |
| | £3.29 | £2.68 | - £0.61 -18.5% decrease |
| | £3.30 | £3.50 | + £0.20 -6.4% increase |
| | £3.30 | £3.50 | + £0.20 -2.1% increase |
| | £2.75 | £3.50 | + £0.75 4.4% increase |
| | £2.50 | £2.75 | + £0.25 5.3% increase |
| | £3.29 | £3.29 | £0.00 4.2% increase |
| | £3.10 | £2.85 | - £0.25 2.3% decrease |
| | £3.03 | £2.85 | - £0.18 1.6% decrease |
| | £21.99 | £4.04 | - £17.95 -37.7% decrease |
| Kellogg's Pop-Tarts Strawberry Sensation (48g) | £3.48 | £3.58 | + £0.10 2.9% increase |
| | £3.00 | £2.98 | - £0.02 -0.7% decrease |
| | £2.69 | £3.00 | + £0.31 4.9% increase |
| | £2.50 | £3.00 | + £0.50 9.5% increase |
| | £2.85 | £3.00 | + £0.15 8.7% increase |
| | £3.30 | £3.30 | £0.00 6.6% increase |
| | £3.00 | £3.00 | £0.00 5.5% increase |
| | £3.03 | £3.00 | - £0.03 4.5% decrease |
| | £2.49 | £2.49 | £0.00 3.8% increase |
| | £8.48 | £8.48 | £0.00 2.9% increase |
| Kellogg's Special K Red Berry Cereal Snack Bar (21.5g) | £1.62 | £1.57 | - £0.05 -3.1% decrease |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| | £2.70 | £2.70 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| | £2.15 | £2.15 | £0.00 No change |
| | £1.78 | £1.35 | - £0.43 -3% decrease |
| | £1.29 | £1.29 | £0.00 -3.1% increase |
