The answer to this question would be: Olive oil
In Mediterranean diet, you need to exchange the butter (since it contains unhealthy fat) with olive oil or canola oil. Saturated fat is also unhealthy so you need to exchange it. Lean meat is good but the consumption must be limited.
Homeostasis is maintained by the respiratory system in two ways: gas exchange and regulation of blood pH. Gas exchange is performed by the lungs by eliminating carbon dioxide, a waste product given off by cellular respiration.
