We have had several pre-teen and teenage boys take SuperGent with the approval and recommendation of their care providers. Since each situation is unique we highly recommend clicking on the "additional information" tab at the top of the SuperGent product description to obtain the ingredient and serving size amounts so his care provider can review them and give their recommendation on whether or not they feel it would be an appropriate multi for their specific health situation.
Some pre-teen young men have taken a lower dose at the recommendation of their care provider until they are physically bigger and in need of the full adult dosage amount. So much depends on individual health and diet it's not possible to make a generic recommendation.
Hope this helps! Please feel free to follow up for any additional information at email@example.com