I had to take antibiotics for a finger infection. Antibiotics also destroys the "good" bacteria in my stomach et al. It messed me up. I started taking probiotics to restore the good bacteria. I went to the supermarket to see what they had. I wanted the liquid not the solid pill-like probiotic or the yogurty stuff. The flavors of the available liquid probiotics were very limited and not what I wanted.
Hmm. Are probiotic drinks marketing mainly to women? Yes, I think so. Why do I think that? Because the flavors of probiotics are mostly "girly" flavors: fruity flavors like peach, mango, pomegranate, lemon cayenne, and an icky tasting strawberry (yes, I tried it, it was icky).
Do real men want to drink fruity flavored probiotics? Not really. Real men would prefer flavors like beer, hamburger, steak, potato chip and yummy stuff like that. I know I would.