I wouldn't worry too much.

If your child is already 2 years old, a finely minced up version of what you and your wife are eating should be fine, supplemented by any of the locally available pre-packed powdered baby foods (as suggested on this thread) that you can mix with water that has been boiled for at least 15 minutes ...including so-called 'mineral water'.

My own boy was taken on trips there lasting from months to years, from the age of 3 months (though he was breast fed at that age).

A fine strapping baby and now a fine teenager with no bouts of ill-health whatsoever. Just pay very careful attention to hygiene and making sure that the boy does not become too hot. Make sure your son has had all his vaccinations and boosters too.

.

.