Lysine supplement has been described to be favorable for heart disease and atherosclerosis patients. Positively charged lysine residues in basic human proteins can attract chloride ion which solubilizes insoluble and stiff calcium oxalate and other insoluble salts. Therefore, lysine supplement can alleviate calcium oxalate stress and prolong lifespan to people with constipation, heart disease, Alzheimer’s disease, SARS, SARS-CoV-2, renal stones, etc., since individuals with these disorders possess insoluble salts in their bodies. To reduce cancer risk while achieve a long and healthy lifespan, weak organic acids can be integrated with lysine supplement and dietary regimens, as they minimize risks for tumorigenesis. This remedy could also be effective for heart disease patients.