Here are a few snack ideas for under 100 kcals. Please note that the kcals shown for the snacks listed were correct when compiling and do change from time to time as do the nutritional values, but this will give you a great reference point when your feeling peckish! Please ensure that you check the ingredients list for allergens before consuming:
Wotsits (12 pack) - each 16.5g bag is 82 kcals
Cadbury Fudge (6 pack) - each 22g bar is 98 kcals
Fox’s Mini Party Rings (6 pack) - each bag is 83 kcals