I've been seeing endless ads for these prebiotic and postbiotic powders that claim to fix digestion and boost immunity. My coworker swears by them and spent like $50 a month, but I can't find any real studies showing they work. Are these just expensive placebos or is there legit science behind the hype?
I've noticed the same thing - these products usually contain actual ingredients like inulin, FOS, or specific bacterial strains, so they're not literally nothing, but the claims way outpace what the evidence actually shows. Most of the research is pretty limited and often funded by the companies selling them, so yeah, you're right to be skeptical about the $50/month price tag for something that might do basically what eating more fiber already does.
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