Based on the usual American diet, how does acid (H+) production compare to the extracellular fuid (ECF) H+ content?
An adult produces roughly 1 mmoles (106 nanomoles) of fixed acid (H+) per Kg of body weight per day. The ECF H+ content is normally about 12 nanomoles. Therefore, the daily acid production is usually a million times larger than the ECF H+ content.