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Registered User
Digestion time/Utilization rate/Meal size?
Hi all, I have a question regarding digestion time of meals, and the significance of meal sizes to their respective digestion times.
After reading around for quite some time, it seems as if the human body takes quite a long time digesting foods. Casein (30-40g) has been shown to release amino acids into the bloodstream 7 hours after injestion.
Now, it intuitively makes sense that the larger meal you eat, the slower it would take for your body to break down and digest the nutrients. If one were to injest 30grams of casein protein, and have amino acids being released after 7 hours of injestion, how long lasting would the supply of nutrients last if someone injested 90g casein instead? I suspect the time it take to digest 90g casein is going to be longer, but not 3 times longer. Any idea how significant the delay would be?
For the application of intermittent fasting, if a huge meal (60% calories of the day) is eaten at 8PM, roughly how long would the it take to fully absorb every bit of those calories? It seems like the general approach is to keep insulin level stable throughout the day, and have huge spikes around workout for anabolic response. Would it therefore be ideal to limit the amount of meals you have to mostly around workout, and have nutrients slowly trickle down into the bloodstream while keeping fat burning paths active?
Thanks in advance.
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Registered User
Originally Posted by mfbarbmff
Hi all, I have a question regarding digestion time of meals, and the significance of meal sizes to their respective digestion times.
After reading around for quite some time, it seems as if the human body takes quite a long time digesting foods. Casein (30-40g) has been shown to release amino acids into the bloodstream 7 hours after injestion.
Now, it intuitively makes sense that the larger meal you eat, the slower it would take for your body to break down and digest the nutrients. If one were to injest 30grams of casein protein, and have amino acids being released after 7 hours of injestion, how long lasting would the supply of nutrients last if someone injested 90g casein instead? I suspect the time it take to digest 90g casein is going to be longer, but not 3 times longer. Any idea how significant the delay would be?
For the application of intermittent fasting, if a huge meal (60% calories of the day) is eaten at 8PM, roughly how long would the it take to fully absorb every bit of those calories? It seems like the general approach is to keep insulin level stable throughout the day, and have huge spikes around workout for anabolic response. Would it therefore be ideal to limit the amount of meals you have to mostly around workout, and have nutrients slowly trickle down into the bloodstream while keeping fat burning paths active?
Thanks in advance.
good question bro.I would like to hear the answer to this too.At the moment,what i'm doing is eating 100% calories post workout(or 90%)in one meal.(from 180 to 220 protein grams).I can see some strength gains,especially at the exercises where i have to work with my own weight).So my asumption is that the 30g of protein in one sitting is false.Time will tell anyway
bump
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Registered User
Originally Posted by mfbarbmff
Hi all, I have a question regarding digestion time of meals, and the significance of meal sizes to their respective digestion times.
After reading around for quite some time, it seems as if the human body takes quite a long time digesting foods. Casein (30-40g) has been shown to release amino acids into the bloodstream 7 hours after injestion.
Now, it intuitively makes sense that the larger meal you eat, the slower it would take for your body to break down and digest the nutrients. If one were to injest 30grams of casein protein, and have amino acids being released after 7 hours of injestion, how long lasting would the supply of nutrients last if someone injested 90g casein instead? I suspect the time it take to digest 90g casein is going to be longer, but not 3 times longer. Any idea how significant the delay would be?
For the application of intermittent fasting, if a huge meal (60% calories of the day) is eaten at 8PM, roughly how long would the it take to fully absorb every bit of those calories? It seems like the general approach is to keep insulin level stable throughout the day, and have huge spikes around workout for anabolic response. Would it therefore be ideal to limit the amount of meals you have to mostly around workout, and have nutrients slowly trickle down into the bloodstream while keeping fat burning paths active?
Thanks in advance.
Relighting the thread here but, how are you guys doing with this. It also makes sense to me. I fast and then train in a fasted state at 1pm (at first this was hard but now i am stronger than ever by some sort of supercompensatory effect). I then ingest all my food after eating in roughly 2 big meals and a big snack.
As a result i have lost more fat with less muscle than i ever did during the 6-8 meal a day plans. Also, my strength has gone up, not down like before.
I think that eatin a large amount of carbs in one sitting will force the body to release insulin and the exceess gets shuttled away - great if you have just worked out as it goes into the muscles. Some of the excess will go into the liver first befroe it goes into fat - but the luver can store 400 kals and depending how you worked out your muscles may take a lot of it too. So there is potential for it all to be stored in glycogen rather than fat.
Even if it did overflow and insulin started shuttlin it into fat stores, the rest of the day when you are fasting your body is burning more fat so the net efefct on fat balance is the same.
The only worry is that when you are in the fsasted state and there is no energy in your blood from dietary sugar, your body is forced to tap into catablosim. Now at first we have reserves of liver glycogen. but when that is gone we will use fat and unfortunately protein from muscle. Howver, if there are amino acids in the bloodstream at this time the muscle is spared.
So basically if it is true that casein can be released into the blood for many hours after ingestion then if your last meal is sufficient enough it could prevent the catabolic state during fasting.
Any other thoughts on this?
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Registered User
It honestly doesn't matter. The human body is amazing and is excellent at balancing itself out.
If you go the day without eating with your body in fasted state then eat all your food at night. The large meal will cause a greater "anabolic" reaction which will cancel out the period of fasting.
The important point here then is daily calories, If you hit your target for the day please don't worry about less important stuff like digestion rates of protein and whether your going "catabolic"
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