Recently I discovered that our school only serves small apples instead of what I thought of as medium apples. In counting zone blocks does it matter on the size of the apple? The reason why I ask is because I remember reading somewhere in Dr.Sears' work of the serving for an apple to be 1/2 of a medium apple. So does a small apple equal half of a medium apple?(Ie. 1 small apple equals 1 block of Carbs).

There is actually a range of Carbs (ratio) of .6 to 1 to Protein. So, if you've been counting your apples as 2 blocks you are OK. A small apple might be more than 1 but less than 2. I would not worry about it so much. If you could weigh one of the aplles, cored, then you could get an idea for your-self if you wanted to.  But, I always count apples as 2 blocks.  An extremely large or an extremely small, I might weigh once, just to see.

Jake, that was the question that I was thinking to ask exactly today!!!

I weighted my (large) apple and the scale said 0.9 oz (257 g)

So I counted it as 3 blocks - since I know if the Carb block is a little less in comparison with the Protein block - it won't make me hungry as the oposite seems to be true for me.

Thanks for posting this question and thanks Sue for responding to it!

Sue?  (a boy named sue, not).

Christina, I think you mean to thank John.   

My reply... it's ok to consider a small apple as you would a medium, unless its so tiny it's miniature.  Since the point of carbohydrate balance is to promote insulin control at low levels, most people will be better off keeping carbohydrate to a bit less than erring by eating too much.

Ooooh nooo.... I'm sorry John!!!

Sue is right, I meant to thank You