Oh I remember this!
After he retired my Dh took over the shopping-so i didn't actually know how much cereal he was buying.
I was at a home ed meeting and said that ds has been eating 5 shredded wheat since he was about three (in addition to normal meals)
On the way home Dd said, that she didn't want to contradict in front of other people BUT.......
So I asked Ds how many shredded wheat/weetabix he ate now?
he said
"For breakfast or supper" I said "both"
he said "on a normal day or a hungry day?"
I said "both".
he said "It is not my fault the bowls are not big enough"
I said "how many do you put in a bowl then?"
he said "three on a normal day and four on a hungry day."
"and how many bowls do you have?"
Ds said "three for breakfast and two for supper"
On a 'hungry day' he was eating 20 shredded wheat in a day!
This was on top of normal meals and fruit and snacks throughout the day.
All healthy and well balanced.
It got to the stage where it was embarrassing taking him to other peoples houses.
We went to Dss house and his partner cooked for us all. I did ask if I could contribute food for ds, as he ate so much! She refused and said it was fine.
Ds said he was still hungry afterwards and could he have "a few weetabix please?"
Dss told him to help himself.
It was only next morning when Dss looked for the new packet of 12 weetbix and found the packet in the bin, did they understand what ds meant by a 'few' weetabix.
Dss partner agreed to me bringing food for ds after that!
Ds was certain that everybody ate as much cereal as he did. So we had a maths challenge and asked everyone we knew in real life and on the internet.
We made graphs of the results!
We only found one other person who ate that much cereal-another teenage home ed lad in Cyprus!
Ds is 20 now and no longer eats so much-thank goodness!
He is still slim though and quite tall and very strong. But nowadays breakfast is one bowl of healthy cereal.