If you develop dry skin on a low-fat diet, especially if you’re eating egg whites and throwing out the yolks, it could be a biotin deficiency. Or, it could be an essential fatty acid deficiency. Either way, egg yolks and liver come to the rescue. How to watch it: Watch it on Facebook. Watch it …
Do you get dry skin when you put on muscle mass? It could be a zinc deficiency. Here’s how to take care of it. How to watch it: Watch it on Facebook. Watch it on YouTube. Listen to the Audio. How to share it and show it love: Share it on Facebook. Give it a thumbs …
In conditions of glucose deprivation, such as fasting or carbohydrate restriction, ketogenesis serves to reduce our needs for glucose. This reduces the need to engage in the energetically wasteful process of gluconeogenesis, which would otherwise be extremely taxing on our skeletal muscle if dietary protein were inadequate. Ketogenesis mainly occurs in the liver. The biochemical …
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The last lesson covered how insulin, glucagon, and allosteric regulators from within the liver ensure that the liver only engages in gluconeogenesis when it can and when it needs to. This lesson focuses on an additional layer of regulation: cortisol. Cortisol is the principal glucocorticoid in humans. Glucocorticoids are steroid hormones produced by the adrenal …
Since gluconeogenesis is extremely expensive, it has to be tightly regulated so that it only occurs when both of two conditions are met: 1) the liver has enough energy to invest a portion into synthesizing glucose, and 2) the rest of the body is in need of that glucose. Since the liver is the metabolic …
Gluconeogenesis is extremely expensive. Three steps of glycolysis are so energetically favorable that they are irreversible. Getting around them requires four gluconeogenesis-specific enzymes and the investment of a much larger amount of energy. Overall, six ATP worth of energy are invested to yield glucose, a molecule that only yields 2 ATP when broken down in …
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This is a brief chapter out of the middle of an ongoing story. I’m not ready to tell the whole story yet, but I’m ready to write a first draft of this chapter and share it with you. I’m still in the midst of this experiment, so what I have here isn’t a finished protocol …