Why TikTok is going nuts for a supplement derived from cow’s milk

Interest in colostrum is soaring on TikTok, but health experts say there’s little evidence the supplement is indeed good for us.

The latest wellness trend to take off on TikTok? Colostrum. The milk produced by female mammals after giving birth, meant to boost newborns’ immune systems, is now being added to smoothies and sold as daily supplements. Also known as “liquid gold,” this nutrient-dense liquid is supercharged with antibodies and antioxidants—and influencers and celebrities are stocking up.