I believe the 2 T dosage is per person. I take 2 T most every morning, but I like citrus juices--most of the time orange. There is a recipe on the side of the Superfood container that is good too. :)
I do not think uping the dosage would "adversely affect" your son at all, quite to the oppisite. It is just food, and I don't think you can overdose on a tablespoon of food. :) Uping the dosage will be more expensive for you, I buy mine wholesale from Tophat to save quite a bit. I save more when I buy more than two, making the shipping charge spread between. Best wishes, Caitlin Lorraine