Colostrum peptides, derived from bovine or human colostrum, have been investigated for their potential benefits in supporting small intestinal health. Colostrum is the first form of milk produced after birth and contains a variety of bioactive components, including immunoglobulins, growth factors, and peptides. Scientific studies suggest that colostrum peptides can help maintain the integrity of the intestinal barrier and modulate immune responses within the gut. For example, research has demonstrated that bovine colostrum supplementation may reduce intestinal permeability ("leaky gut") in athletes and individuals with gastrointestinal stress (Marchbank et al., 2008). Additionally, animal and in vitro studies indicate that colostrum peptides may promote the repair of damaged intestinal mucosa, support epithelial cell growth, and inhibit the adhesion of pathogenic bacteria to the gut lining.

However, while these findings are promising, most human clinical trials have been small or focused on specific populations, such as athletes or patients undergoing intensive exercise or medical treatments. Larger and more rigorous studies are needed to confirm efficacy and determine optimal dosing. Nonetheless, the current scientific evidence provides a moderate level of support for the use of colostrum peptides in supporting small intestinal health, particularly for enhancing barrier function and modulating inflammation.