Hi - I cam accross your question while job hunting! I work in feeding (as a dietician) and the good news is there is a light at the end of the tunnel. Firstly make sure there is nothing medically amiss - simple things like tonsils, blocked noses can show up as kids being "stuck" with what they eat. Has he always been a difficult feeder or has this emerged more recently? Neophobia is a common problem - where food previously eaten become a problem in terms of fear. Also has his oro-motor skills evolved to be age appropraite - what does he eat in a typical day and is there a variety of textures eg. cruchy, bite, bitty foods? Is his speech appropriate. Feed and speech are very interrelated. If the issue is the variety of foods build on - I use a method called food chaining - google it but essentially it is if I eat apple sauce, I move to stewed apple, then apple pie, then sliced peeled appple. The initial foods take time but the key is to let the child build confidence. In terms of this I encouraged a division of responsibility - parents are responsible for the what, where, when and the child the how much if any. This is work by Ellyn Satter and she has a great parent friendly website. If there are any speech and texture issues - you may need an oromotor programme (usually developed with a speech therapist). If other developmental issue - you may need to look at fine motor and gross motor skills with occupation and physiotherapy. Remember there are essentiall 32 steps to successful eating!!!! The main this is patience.
Now to things like Paediasure..... this can fill children up!! And can hinder rather than help.... So use with caution - due to the fact it is essentially a food stuff.
Hope this is a help. I have applied for a job in the UAE so fingers crossed. I hope this hepls.
used your advise and its really work
Thanks