joint supplements?

I own a 7 y/o OTTB. We do Hunters. She gets worked 5 or 6 times a week, an hour a day to the most. On a normal day we do basic flatwork, w/t/c and then we do some courses (usually around 2-2 3, 2 6 max).

She's on supplements right now, but I don't think she needs them. She has no health problems.
What do you guys think? Keep em? Or stop giving them once I run out of this batch?

It's a very personal decision. Having your horse on supplements is always a good idea, at the same time for what you're doing and your horse's age I wouldn't be concerned if you didn't.

I've had some of my horses on them and others not and I honestly can't say I have noticed a big difference.

They are quite pricey to get and feed.

I am very big on joint supplements. If my horse does any jumping or a lot of hill work like rigorous trail rides or if I'm doing any kind of work with going up and down hills or just riding for long hours I have them on joint supplements. It is way better to be safe than have a horse with arthritis by age fifteen.

You asked a very good question.
I've had the same question myself, concerning my own horses, but have not come to any firm conclusion.
And as some questions do, that one leads to others.

To start with, "joint suppliments" vary a lot, in just what they are made of and/or what compounds they contain. Some ingredients aid the tendions, some the bone, and some the cartlidge. Some ingredients won't work at all, unless mixed with another ingredient. So that being the case, and just from reading the labels on various products, I see very few suppliments out there which, when given alone, can possibly work on every aspect of joint health.
And to make it even more complicated.... the companies that market this stuff ALL say that their brand is just wonderfull. But they never mention anything about possible side effects or other health issues that may be encountered with long-term use.

So far, I have to agree with the other answers you've gotten in this thread. Meaning....yes, they are expensive.... I've seen little difference in using them, or not using them... and yes I do give them to my own horses but in low doses, as a sort of PM program.
The only exception to any of that was this one TB mare which I owned years ago. She had a touch of lemeness in one ankle-joint which eventualy was cleared-up after being given one particular suppliment for a LONG time.

In your case, I couldn't begin to answer your question for you, except by asking additional questions.
How long has your mare been on her present suppliment?
Who started her on it and why that particular one?
Is it is a case of preventative maintanance, or was there an obvious problem?
Is your horse in good health because of the suppliment....or is her health such that it aint needed?
And most importantly...Have you consulted a Vet about continuing it's use?

I wish I had a good answer for your (seemingly simple) qusetion but the fact is....I don't.

DGW