They call it “nature’s original superfood” for good reason. Produced by mammals in the days immediately following birth, colostrum is packed with a range of bioactive compounds, including growth factors, essential amino acids, proteins, healthy fats and immunoglobulins that support a newborn’s development and immune system. And these days, colostrum supplements have also become quite popular with adults looking to support their daily health and immunity. On Amazon , one bestselling powder has