The cost is a real chronic-exposure burden on the myocardium, but it is small in energetic terms the entire resting myocardium consumes only about 170210 kcal/day, so a 1 bpm rise on a base of 70 represents roughly 1.4% of that, on the order of 23 kcal/day
(7) Dietary protein As the three precursors and foundation of glutathione production are amino acids, dietary protein intake may influence the amino acid pool that glutathione synthesis draws on (8)
Neuron 66 , 695709 (2010)
That means its injected into fatty tissue under the skin, usually once weekly
Hsu CH et al
Activation, Differential Localization, and Regulation of the Stress-Activated Protein Kinases, Extracellular Signal-Regulated Kinase, C-JUN N-Terminal Kinase, and P38 Mitogen-Activated Protein Kinase, in Synovial Tissue and Cells in Rheumatoid Arthritis