There's lots of antedotal evidence out there that apple cider vinegar helps with weight loss. I even tried it myself several years ago in the early part of my personal weight loss journey, but I can't say that it helped or hindered my losing weight.
I do think it might be helpful in that by taking the ACV you are focusing on doing something to lose lbs. And the focusing in itself is a good thing to do.
At any rate the taking of the ACV is not a harmful thing in itself unless you have a acid stomach problem or something like that. After all, it is a low-calorie food item.
If you decide to try the ACV, read up on it first. Be sure you get the ACV with the 'mother' in it. And let us know how it works for you.