Anyone know about the maternity milk/drinks?

Ro • 27, from Israel, married for a year and a half, husband from here in LA, love my Frenchie and don't like morning sicknes
I saw this video that made me cry over and over again. It had a cartoon baby talking to it's mom. In it, the mom kept drinking a maternity shake. Anyone know about this? Is it a gimmick? Is there merit to it?