In the past 6 months or so, our oldest child started to have meltdowns. Diagnosed as autistic, we had a hard time dealing with this behavior. From biting his hand & arm, to literally falling to his knees crying, we needed something to help us, help him. My wife was hesitant at first, not wanting to "medicate" our son but the other reviews talked about the improvements plus I saw that this brand had a nice balance of vitamins plus minerals added as well. I'm not for certain but I believe that within a week of taking this (1 capsule only), his behavior improved & now we can state that it really has improved. It could be that we are also using Thorne Research, Children's Basic Nutrients but I think that the DMG plays a more important role in helping his behavior. It has been months since he has bitten his hand or arms & doesn't have too many meltdowns (mainly from being tired or conflict with his younger sibling who often takes things from him). His therapists at school talk about how well behaved he is & how well he interacts with them plus sometimes the other children (who are often crying & screaming). Some even question if our son is autistic or not! We would like to try not using it for a week or two but since his behavior is so much improved, we will wait a while first before doing so.