Would you tell someone they need shapewear?

I wear shapewear just about everyday it helps me look and feel better about my current situation.  If you had a co-worker, girlfriend, etc and they needed shapewear badly would you tell them?  I would want someone to tell me about shapewear if I had never wore any.  I buy the high waist shorts shapewear and they are extremely comfortable.  What would you do I have a co-worker who is driving me crazy wearing dresses jiggling all over the place.  So I want to tell her from one thick woman to another shapewear will do wonders.  What would you do? My aunt pulled me to the side when I was young and purchased shapewear for me to help with the firm look.

Edited to add

I will not be mentioning it to her I will let the other co-workers that talk about her all the time do it.

I don't think I'd tell a co worker or a random person on the street, but I do hope those close to me would let me know I could do better.

umm, I did.  was on vacation & had a tour that a included a young lady & her parents who were all plus sized.. she was cute, but way too dumpy. her titties hung like she was 85 years old.  then on top of that her mother was an embarresment.  (For those who watched bye bye birdie, she reminded me of dick van dykes mom).  so i pulled her aside & told her she was a pretty young woman, but being plus sized it is sometimes hard to have things fit right for us & that LB had a great bra line (Caclique), as normal bras don't give us the support that we need.  did she seemed shocked that i told her? Yes, but i'm sure later on she took my advice.

It's all in the way it's addressed.  You can't assume that people always know better or know the solution to something.

Would i appreciate it?  Yes, cause obviously someone is seeing something about myself that I can't see, but no one else thought enough of me to mention it.  To me it would be no different than someone walking around with tissue on their shoe.  Everyone but you are aware of this, until someone brings it to your attention.

Depends on how close you are.  You can do it tactfully.... just pull her to the side and ask her had she tried them, or even suggest the ones you use.  Do it as giving her pointers, not like she NEED to wear one...LOL   She shouldn't get upset, she should be grateful!!  LOL 

I don't think I could tell anyone. Now, I might would conveniently mention it to them if I wore shapewear and that would be it. 

 @ So I want to tell her from one thick woman to another shapewear will do wonders.

I don't know jack about shapewear or even what it is for that matter, but I've found a little trick that will let you lead into any conversation without singling a person out.  You may want to try this:

If she's non-confrontational and easy going - Put your arm around her neck in a playful hug, walk away from the crowd, and tell her the name of the product, what it does, and then give her that look that says, "C'mon now...  I'm tellin ya cause I luv ya..."

If she's confrontational, loud, and ghetto - Put your arm around her neck in a playful hug and say to her as if you have a secret, "I found the name of that shapewear product that you were asking me about...  Wait a minute... My bad.  Hold up.  It wasn't you who was asking me about that.  Sorry.  My apologies."  They may not ask you to finish telling them about it but you'll get it out there in case she wants to know more and if she doesn't, then let it go at that point.  You did your thing.  

Lemme know how you make out.

Kudos sir for such a creative approach. 

I go with what Becca says,  you don't need to tell anyone they are fat because if you know it you better dam believe they know it themselves.  

As far as shapewear I'm not going to tell anyone they need that either,  Some chicks like showing off their pocket rocks.

@ Some chicks like showing off their pocket rocks

Faith you know what i'm talking about,  their ass be looking all bumpy like they have a dam pocket full of rocks.