If you think about it, you breathe in 21% oxygen and breathe out 5% CO2. If you switch to 100% oxygen, you still breathe out 5% CO2. This is because the carbonic acid is tightly regulated in the body at a level that is in equilibrium with 5% CO2. When we produce excess, through exercise, we ventilate more to maintain the balance. But the partial pressure of CO2 remains the same. There is some oxygen removed but only as much as the hemoglobin can carry.
Prolonged 100% oxygen has no effect on this and is also toxic over time. People on oxygen therapy are really breathing 40%, and 100% is only used for short stints during anesthetic procedures.
Prolonged 100% oxygen has no effect on this and is also toxic over time. People on oxygen therapy are really breathing 40%, and 100% is only used for short stints during anesthetic procedures.
This video explains how weight loss occurs: https://youtu.be/vuIlsN32WaE