We did 6 months strict SCD with our daughter H. Actually, we tried it first when she was early in her diagnosis but she was so sick then that we had to stop and go to meds. She was 3 then. Now she's 7.
So we tried it at age 6 when she was feeling better but still high inflammation numbers. She has 6 siblings and so it really wasn't possible to feed everyone SCD as the expense was high for us. We had special food for her and tried to share the family meal at suppertime by making it SCD with options for everyone else.
I found it helpful to have a variety of scd treats on hand, because kids miss the sweets that their siblings receive. Holidays are hard, and our daughter had to refuse every treat she was offered at school. Birthdays, Valentine's day, Christmas, Easter.....all require special prep.
That said, she did it! Her inflammation levels did go down, but I don't know for sure if it was med related, diet, or both.
This diet is used for Autism too, so could be a help all around.