I did find something directly from Pakistan:
http://www.pakissan.com/english/allabout/horticulture/neem.wonder.tree.shtml
I understand what you mean. It can be very frustrating.
I would also research the hibiscus and jasmine. There are lots of different types of jasmine, neem, hibiscus, etc. you need to put on your deerstalker cap and grab your magnifying glass for some old fashioned detective work.
I’ll keep looking on my end. Neem is almost exclusively used as an extract, so very highly concentrated, making it more difficult to figure this out.
An example of contradictory information: rabbits can eat, and seemingly enjoy, celery BUT you have to take the threads out first or chop it
very fine, because they tangle in the stomach and cause a blockage. In other words, I see celery listed as an okay food on some sources and as a banned food on others.