Gassy on intro diet - what to do??

[Guest guest]

We're into our second day on the intro diet and ds is very gassy - he's

eating spinach, beef, applesauce, diluted home-made apple juice. These

are some of the only foods he is not allergic to that are suggested for

the intro diet level. (The others are zucchini and pear and lamb, we're

saving those for days 3 & 4, since we must rotate foods every 2 days).

Should I presume that one (or more) of these foods doesn't agree with

him? If so, what's my next step? Pull out one food at a time to find

out what is the problem? My concern is that this could take a day or

more, and I don't want to keep him on such a limited diet for so long.

I was hoping to be able to add foods by the 3rd or 4th day.

I'm sorry to have so many questions - it's hard to figure out how to do

the intro diet with a child who has such few food choices.

Advice please!

Suzanne