| 16 Products | May 2025 | May 2026 | Change |
| Biotiful Morello Cherry Kefir (250ml) | £1.60 | £1.65 | + £0.05 3.1% increase |
| | £1.60 | £1.65 | + £0.05 3.1% increase |
| Biotiful Dairy Kefir Drink (1l) | £3.50 | £3.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| Biotiful Strawberry Kefir Drink (500ml) | £2.60 | £2.60 | £0.00 No change |
| | £2.60 | £2.60 | £0.00 No change |
| Yeo Valley Organic Raspberry Kefir Yogurt (100g) | £2.55 | £2.60 | + £0.05 2% increase |
| | £2.55 | £2.60 | + £0.05 2% increase |
| Biotiful Organic Kefir Raspberry (250ml) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| M&S Raspberry Kefir (350g) | £1.65 | £1.65 | £0.00 No change |
| | £1.65 | £1.65 | £0.00 No change |
| Biotiful Dairy Kefir Drink Morello Cherry (500ml) | £2.60 | £2.00 | - £0.60 -23.1% decrease |
| | £2.60 | £2.00 | - £0.60 -23.1% decrease |
| Biotiful Kefir Drink Natural (500ml) | £2.60 | £2.00 | - £0.60 -23.1% decrease |
| | £2.60 | £2.00 | - £0.60 -23.1% decrease |
| Biotiful Dairy Kefir Slurpy Drink Strawberry (100ml) | £0.75 | £0.75 | £0.00 No change |
| | £0.75 | £0.75 | £0.00 No change |
| Biotiful Kefir Cultured Dairy Drink Vanilla (500ml) | £2.60 | £2.00 | - £0.60 -23.1% decrease |
| | £2.60 | £2.00 | - £0.60 -23.1% decrease |
