The peptide capsule guide discusses the current state of oral peptide delivery
NOVA Complete is designed to increase nitric oxide production in the body.* Instead of relying on L-arginine like most formulas, it features a superior combination of L-citrulline, select botanicals, and key vitamins and minerals to boost nitric oxide, relax blood vessels, and enhance circulation in men and women over 40.* In my clinical experience, giving L-citrulline increases cellular L-arginine much more efficiently than giving L-arginine supplementally thereby reducing damage due to elevated arginase activity and reduced availability of L-arginine for the nitric oxide cycle.* - Jim Meyer , PharmD, MS, CCN, Opinion Leader & Formulator of NOVA Complete, with 20 years of compounding experience & a masters degree in molecular biology
They also include heavy metals from industrial activities or polluted water
[DOI] [PMC free article] [PubMed] [Google Scholar] 156.Rong Y., Geng Z., Lau B.H
Factors such as alcohol use, chronic illness, low glutathione, infancy, and older age can also increase risk