Does this exist????
 

Looking for a reasonably priced trip to the carribean that
1) Is clean and not too many problems with drinking the water, using ice and eating fruits and vegetables
2) ADULT only
3) MAP or AI
4) Can get there nonstop from New York LGA or JFK

What's reasonably priced to you? We'd just be guessing without a budget.

Many places fill your requirements, but need a figure

We need more info to make recommendations.

First, most of the AI's are in Mexico, Jamaica and Dominican Republic. Of those, only a hand full is going to be adult's only. Of course, adult only comes at a higher price.

Mexico and DR have the reputation of issues with the drinking water and upset stomach issues, but if you watch what you eat and don't overindulge with the alcohol you will be fine.

Here's a list of AI resorts in the Carribean.

http://www.caribbeanallinclusive.com...ve_resorts.cfm

Here is a list of all the AI resorts in Mexico.

http://www.mexicoallinclusive.com/me...ve_resorts.cfm

Do some research and then come back and ask specific questions.

Not sure if it meets your reasonably priced option, but take a look at LeSport on St. Lucia and La Source on Grenada. They are health-oriented all-inclusives for people 16 and above. They also include one spa treatment per day per person and offer more healthful dining choices than the average all inclusive.

bookit.com good AIs Jamaica couples.com Swept Away
luxurylink.com Excellence puntacana.com DR
travelzoo.com amazing AI values in Puerto Plata DR

Happy Hunting!

Jamaica fits the bill completely as well (Iberostar Grand might be one specific resort in that class, but there are other better places).

The tricky part is the "reasonably priced" issue. Someone in another thread wanted something like this for $2,500 for a couple, which is a bare-bones budget for a cheap, mediocre AI. So you need to give us some idea of your budget. There are plenty of places that fit the bill otherwise all over the Caribbean.