Hiya, you are supposed to have 1 or 2 A's and 2 B's it is a good idea to have the 2 A's aswell as the B's at the beginning of the plan ,because if for some reason you need to cut back on anything further along the line, you will have something to cut back on, for the same reason it is a good idea to start off using all your syns, hth.
i find it hard to fit in my healthy extras. i usualy have 1 of each a day and cant find anywhere for the others ones and my consultant nags me funny enough she just text me this mornin saying....make sure you have your healthy extrass!!
And of course the fibre helps with the losses we make down the toilet, so definately a good idea to have your HX's (I know, do we really need refrences to the loo? on a nice peaceful sunday afternoon, lol)
I have my 350ml skimmed and then Babybels for the other 'A', either 3 of the Light or 2 Emmental. 'B's are usually 2 x Weetabix and then a small wholemeal roll or Ryvitas. Couldn't live without some cheese each day!