Steffi, was he by any chance a big gainer the first year? Riley was, he was over 30lbs by a year. And now he is about 39lbs, I think at the last check just a month or two ago. At his 2 year check, I was shocked he had not gained much at all in an entire year, but his paed explained that at his age, they look for other things as signs of good health and growth, such as continuing to meet milestones, developing social skills, good hair and nail growth, tone of skin etc. Riley has a terrible sweet tooth, I am sure he would weigh more if I gave him things like cookieds etc., but I chose not to, only on rare occasions as a special treat. I want him to continue to eat healthful choices. I would much rather he eat a banana that has 90 cals than a cookie that has 110 cals for example.