What to Know About Colostrum Supplements

4. Why People Are Taking It Now

Colostrum’s supplement hype has grown largely out of conversations about “leaky gut” — a loosely defined condition that’s exploded in popularity on TikTok, YouTube, and wellness blogs. Many creators describe it as a root cause of fatigue, bloating, or brain fog, and recommend colostrum as a gut-healing fix.

That message has stuck. Some brands now market cow colostrum as a natural way to strengthen the gut lining, rebalance the microbiome, and reduce inflammation. Others pitch it as a recovery aid for athletes or a general immunity booster.

This rising interest mirrors the broader boom in microbiome health products. And while colostrum does contain compounds that may support gut function, most claims are based on early-stage or animal research.