Do I need to cycle colostrum?Updated 3 years ago

It is often suggested that colostrum should not be taken daily, and instead cycled for weeks at a time, due to its levels of growth-promoting IGF-1. While any protein source has the potential to increase IGF-1 when included in the diet, Colostrum is no different than whey protein at doing so. The IGF-1 that is present in colostrum naturally appears to be fully digested in the intestinal tract and does not reach the blood. At this time, there is no evidence to suggest colostrum isn't safe to take on a daily basis or needs to be cycled.