It is difficult to comment on the best route forward with a 'snapshot' of information. If your gut feel is that he is bored in class, you can try supplying his current teacher with a book of work for a higher grade which he can work on once finished with his class work, provided it is completed with neatness and accuracy.
In terms of one supplement being better over another, it is a personal choice. I would recommend looking at the quantities of omegas in each product and discussing with your pharmacist what the optimum daily requirement is for a child of your son's age and size. The other main difference from one supplement to another is the quality of the oils used; as each company will claim superiority over the next, your pharmacist may be able to assist in this regard as well.
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