Is Vshred a scam?

Hi,
My roommate was on Instagram and she just had the add for Vshred selling her easy weight loss. And of course it was TODAY ONLY the offer which made me suspicious. Losing weight isn't a child game and the dude is saying that even Hollywood stars do it... It seems very fishy.
I mean there wouldn't be any celebrities with curves, and if it was THE miracle recipe then there wouldn't be any people overweight.
So I told her to just do a minimum of research before grabbing her card. Of course she didn't listened and is now on the "loop".
I Googled and the reviews are mixed and say that it's a scam but almost worth it? I don't understand and don't know what to do.
The guy throws numbers and research every two sentences...
I feel it's weird you know.
Have you ever been faced with this and is it a scam? Is it legit and should I just be happy for her? I have no clue
Is Vshred a scam?
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