Not sure that this will help, but the only things under "Marks and Spencer - Super Wholefood" on the SW website were:
* Fuller Longer Super Wholefood Salad with a Creamy Lemon & Mint Dressing, chilled, 290g pack = 7.5 Syns
* Super Wholefood Salad with Blueberries and Mango, 215g pack = 2 Syns
* Super Wholefood Shaker Salad with a Lemon & Herb Dressing, chilled, 230g pack = 9.5 Syns