When DS concentrates, his school work is apparently very good. But the class teacher is frustrated that he loses focus and ends up needing her to repeat instructions, or just does the wrong thing entirely. He's fine when there is a teacher / TA at his group table but that can't happen all the time. Class teacher talked to SENCO and suggested that we monitor at school, and try to build in some games and activities to improve concentration. Reading between the lines, I think they suspect ADD, although that wasn't mentioned in as many words. But some of the things they suggest look like some of the interventions described on ADD websites.
I was looking online for further suggestions, and found a load of helpful discussion, including on here, about vitamins, fish oils, and other supplements. Particularly on US websites, there was a lot of interest in PS 100, phosphatidylserine, for improving concentration, attention, and memory in children and adults. It doesn't seem to be such a big thing in the UK, and I wonder if some of the reviews (it changed my life in 20 minutes etc) might be misleading. Has anyone here used this or given it to their child? Did it work, or would you steer clear? All advice appreciated.