I've heard if something isn't syn free it's 1 syn per 20 calories, but does this apply to everything?
For example, I've made a lasagne but I've used a jar of Asda white lasagne sauce. It has 99 calories per 1/4 jar. The lasagne serves 4 and all other ingredients are syn free.
Would it be 5 syns per portion? Or are some things higher in syns generally regardless of the calorie count?
Thanks 