A supplement derived from cow's milk is taking over TikTok, but health experts say its benefits aren't clear

• Colostrum has been gaining attention on social media.
• Some TikTokers say that the supplement aids gut health and reduces bloating.
• But health experts say the evidence for many of the claims people make about colostrum is lacking.

One of the latest health crazes to take off on TikTok isn't some exotic ingredient from a plant you've never heard of — instead, it's derived from milk.