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The Protein

Nathan101085

New member
A few points and a few questions
Does the following sound correct?

A. Positive Nitrogen Balance is optimum for muscle growth.

B. During a Workout the body will burn protein as glucose through glucogenesis (in varying amounts related to glycogen store depletion) with glycogen.

C. As Length of a workout increases and glycogen stores are depleted cortisal levels increase therefore more protein is turned into glucose.

D. So a High protein intake allows for a good amount of protein burning during an intense workout and spares protein to be used for the repair of muscles.

E. Carbohydrates will decrease cortisal levels as glycogen stores are repleted and protein breaks down at a slower rate.

So lifting on a low carb or keto diet requires nearly all or all (depending on carbohydrate allowance) glucose to come from glucogenesis, therefore the protein needs to do the work of the carbs and the protein. Higher carb levels throughout the day though require higher levels of insulin the blood which minimizes fat burning on a calorie to calorie minute to minute basis at rest. Hence the longer its been since the last time you ate carbohydrates the lower the insulin levels are in your blood and the more fat is burnt per calorie. In this way your body manages to burn about the same ratio of nutrients which you took in from your diet. A diet with few carbs and a lot of fat will have low insulin levels and burn more fat. However if the total calories of this diet still are exceeding the energy requirements weight will be gained in the form of fat, in a diet like this protein is also used in higher volume to make up for glucose needs. With a diet higher in carbs insulin levels in the blood are higher so more carbs are burnt and fat burning is minimized. Therefore, and I'm sure youve heard it before, carbs are protein sparing because less protein is needed to meet glucose demands. Again on a diet higher in carbs as long caloric total does not exceed the expenditure no weight will be gained. THE ONLY problem lies in that if insulin levels are raised too high they will store the carbs as fat which in the end will lead to more fat burning except that because the fat was sugar, the blood sugar levels deplete and you get hungry making it harder to stay within your caloric limit.

1. How many grams of carbs can glycogen stores hold? Is there a formula for this?

2. Is it easier on the body to burn glucose as sugar than it is to perform glucose genesis? If yes could this impact performance?

3. What is the minumum amount of protein needed for positive nitrogen balance?
 
3: "These studies bring another question up which is: is the minimum amount to maintain positive nitrogen balance the optimal amount for increases in muscle mass. Other studies have addressed this as well as is possible. One study found that nitrogen retention was greater at 350% RDA (2.8g/kg) versus 175% RDA (1.4g/kg). In this study, the higher protein group experienced greater gains in lean body mass. Several other studies support this idea. Ultimately the question is this. If some nitrogen retention is good (i.e. positive nitrogen balance), is more nitrogen balance better?? This has not been answered conclusively but seems to be supported by the above studies."

http://www.volleyweb.com/lylemcd/protein.html

google is your friend ;)
 
thanks

Yes that seems like some good info.. In my opinoin optimum means getting enough carbs to fuel workouts and save enough protein to stay within positive nitrogen balance even if you arent way over just in it because I find that I can work out much more efficiently when I'm fueled right plus I just feel better. Without a productive workout that doesnt really get your muscles needing to repair anything you probably dont need a whole crap ton of protein because you wont end up burning much of it away.
 
Update

Im findin that the minimum protein that needs to be left unburned is 1.5-2kg-per pound of bodyweight. Be careful everyone on high protein diets (more than 40% of total cals):insane: that u arent using so much protein for glucose during workouts\living and raising coritsol levels so much that u drop under this range
 
1 more thing

As important and necessary as cortisol is, you can have too much of it circulating in your system. If you are constantly under stress, your cortisol level can remain elevated over long periods of time. Research now correlates chronically elevated levels of cortisol with blood sugar problems, fat accumulation, compromised immune function, exhaustion, bone loss, and even heart disease. Memory loss has also been associated with high cortisol levels. Continual stress can indeed have a negative impact on your health.


http://www.diagnose-me.com/cond/C314595.html
 
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