Pass the Protein (roots) – Part 2
After 4 months we are finally nearing the completion. We discussed the basic context of Macronutrients (protein, carbohydrate, and fat) as “fuel.” We learned that there is a group of Micronutrients – vitamins, minerals and phytochemicals that all constitute “service” or biological maintenance. We understand that fat has more energy density (2x) than protein or carbohydrate.
Our body uses primary fuel glucose/glycogen through the TCA or krebs cycle to obtain energy (brain biggest single user, followed closely by liver and muscle) and the body stores a glycogen (a special muscle protein with a carbohydrate shell) and fat (adipose tissue) for rainy day “reserves.”
If you are REALLY starving, or consume an excess, protein is (inefficiently) converted to be used in the sugar cycle through gluconeogenesis (creating new glucose from protein). The body protects protein a bit, because there’s no sense in digesting the muscle tissue when there is plenty of fat or glycogen around to tap into. Fat on the other hand goes through a different pathway from protein/carbohydrate to derive energy (beta oxidation), but after that are dumped into the same krebs cycle.
Proteins DO NOT = Flesh. There are many very important proteins…
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