Where full proteins may be too large or complex to enter cells or trigger certain functions, peptides are the bodys way of sending direct instructions: heal here, grow this, calm that. Because of their size and specificity, peptides can target functions in a way pharmaceuticals often cannot
Dimkpa C, Svato A, Merten D, Bchel G, Kothe E (2008) Hydroxamate siderophores produced by Streptomyces acidiscabies E13 bind Ni and promote growth in cowpea (Vigna unguiculata L.) under Ni stress
rda: Dochniak M., Ekiert K., ywienie w prewencji i leczeniu choroby Alzheimera i choroby Parkinsona, Pielgniarstwo i Zdrowie Publiczne, nr 2 (5), 2015
For instance, hospitalized patients with severe alcohol-related malnutrition might receive 1 mL IM daily for a week