Can I add Isinglass to the keg?

I have a RyeIPA brewed with US-05 carbing in the keg. Its been dry hopped in a nylon bag. It spent around a month in primary, and fermentation was complete.
I've pulled several pints and while it tastes good, there is a lot of particulate suspended in the beer. Could these be little yeast colonies? I cant tell if its all through the beer, or its being picked up from the bottom of the keg.

Can I add Isinglass to clarify the kegged beer?

What kind of hops were you using? Pellet hops have a tendancy to break apart and stick around in the beer for a while. I try to use only leaf hops in the keg.

Also, how many pints have you pulled? It may be a little bit of trub or yeast that has been settling.

If you used pellet hops, you may have this issue for the entire keg... not a big issue as far as taste is concerned!

I've pulled about 3 pints.
It got dry hopped with pellet in a nylon bag. If this is hop suspended, is there a way to get it to drop out?

Cold crashing and time will help. Some people use unflavored gelatin as a clearing agent as well.

In the future, I would dry hop in the primary if you are going to use pellet hops. Even though they were in a bag, they still tend to turn to hop sludge and some of that can get into the beer.

Is there any taste or digestive tract concerns, or is it just cosmetic?
Should I bother with the Isinglass?

It's just unflavored, colorless jello.

I haven't used Isinglass, but the Redal Brewer website says that you can use it at kegging time. The unflavored gelatin works the same way I would imagine. Both are going to drop out and be pulled through a few pints of beer.