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Old 01-09-2013, 10:47 AM   #7
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Default Re: Protein Shakes - Training

Depends on context. Variables such as:

- Type of training.
- Gaining or losing weight,
- If the latter, how large is your caloric deficit.
- How lean you are.

An example of why they have any significance:

If you're quite lean and training with intensity, fat is going to become less of a preferencial fuel in the body. You're also going to go through periods of glycogen depletion if you're lean and in a calorie deficit, so processes like gluconeogenesis (essentially protein being converted to carbohydrate) are going to increase. Now, gluconeogenesis only works one way; amino acids can be converted in to glucose, whereas glucose cannot be converted to amino acids. So that's one example of how protein needs can increase.
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