Are You Still Using This? STOP!!!

[just_A_Gazin]

Just curious why you stated that BV's are not supposed to go higher than 100. Good post none the less

Its all in the way it is calculated. The very definition of Biological value

The underlined is copied and pasted I dont want to type that which is already written
Biological value is determined based on this formula.

BV = ( Nr / Na ) * 100
Where:

Na = nitrogen absorbed in proteins on the test diet
Nr = nitrogen incorporated into the body on the test diet
However direct measurement of Nr is essentially impossible. It will typically be measured indirectly from nitrogen excretion in urine.[6] Faecal excretion of nitrogen must also be taken into account - this protein is not absorbed by the body and so not included in the calculation of BV.

BV = ( ( Ni - Ne(f) - Ne(u) - Nb ) / Ni - Ne(f) ) * 100
Where:

Ni = nitrogen intake in proteins on the test diet
Ne(f) = nitrogen excreted in faeces whilst on the test diet
Ne(u) = nitrogen excreted in urine whilst on the test diet
Nb = nitrogen excreted on a protein free diet
Note:

Nr = Ni - Ne(f) - Ne(u) - Nb
Na = Ni - Ne(f)
This can take any value of 100 or less, including negative. A BV of 100% indicates complete utilization of a dietary protein, ie. 100% of the protein ingested and absorbed is incorporated into proteins into the body. Negative values are possible if excretion of nitrogen exceeds intake in proteins. All non-nitrogen containing diets have negative BV. The value of 100% is an absolute maximum, no more than 100% of the protein ingested can be utilized (in the equation above Ne(u), Ne(f) and Nb cannot go negative, setting 100% as the maximum BV).


The part I put in bold is why theoretically it should not go higher than 100. In other words how can your body utilize more protien than whatever you are injesting actually has?

Hopefully that explains it for you.

Also as you can see meat is not meat. Fish chicken beef all have a different BV. See if you were to eat say a bean with a BV of 50 (I am making that up right now for making a point) and say it had 20 grams of protien. Your body according to the BV rating system will only absorb 10 grams of that protien. When you read labels at the grocery store that says "High in protien" your next question should be "what kind of protien?" because lets say it is a bean cereal that has a BV of 50 and 10 grams of protien. Big deal since your body will only use 5 grams of it.

And whoever asked if protien powders are a waste of time, the answer is Heck no they are not a waste of time. You should injest 1.5 to 2times your body weight in grams of protien every day on a bulking cycle. If you weigh 200 lbs you need 300-400 grams. Try eating that much Steak, chicken cottage cheese whatever in a day. And even if you could your grocery bill would be herendous. In conclusion whey protien is great protien. Isolates is better than the concentrates. Little Miss muffet who sat on her tuffet eating her curds and Whey must have been into bodybuilding too.

Dont believe me though its only my 12th or so post and my join date clearly shows I know nothink! lol!

 

[needtogetaas]

Its all in the way it is calculated. The very definition of Biological value

The underlined is copied and pasted I dont want to type that which is already written
Biological value is determined based on this formula.

BV = ( Nr / Na ) * 100
Where:

Na = nitrogen absorbed in proteins on the test diet
Nr = nitrogen incorporated into the body on the test diet
However direct measurement of Nr is essentially impossible. It will typically be measured indirectly from nitrogen excretion in urine.[6] Faecal excretion of nitrogen must also be taken into account - this protein is not absorbed by the body and so not included in the calculation of BV.

BV = ( ( Ni - Ne(f) - Ne(u) - Nb ) / Ni - Ne(f) ) * 100
Where:

Ni = nitrogen intake in proteins on the test diet
Ne(f) = nitrogen excreted in faeces whilst on the test diet
Ne(u) = nitrogen excreted in urine whilst on the test diet
Nb = nitrogen excreted on a protein free diet
Note:

Nr = Ni - Ne(f) - Ne(u) - Nb
Na = Ni - Ne(f)
This can take any value of 100 or less, including negative. A BV of 100% indicates complete utilization of a dietary protein, ie. 100% of the protein ingested and absorbed is incorporated into proteins into the body. Negative values are possible if excretion of nitrogen exceeds intake in proteins. All non-nitrogen containing diets have negative BV. The value of 100% is an absolute maximum, no more than 100% of the protein ingested can be utilized (in the equation above Ne(u), Ne(f) and Nb cannot go negative, setting 100% as the maximum BV).


The part I put in bold is why theoretically it should not go higher than 100. In other words how can your body utilize more protien than whatever you are injesting actually has?

Hopefully that explains it for you.

Also as you can see meat is not meat. Fish chicken beef all have a different BV. See if you were to eat say a bean with a BV of 50 (I am making that up right now for making a point) and say it had 20 grams of protien. Your body according to the BV rating system will only absorb 10 grams of that protien. When you read labels at the grocery store that says "High in protien" your next question should be "what kind of protien?" because lets say it is a bean cereal that has a BV of 50 and 10 grams of protien. Big deal since your body will only use 5 grams of it.

And whoever asked if protien powders are a waste of time, the answer is Heck no they are not a waste of time. You should injest 1.5 to 2times your body weight in grams of protien every day on a bulking cycle. If you weigh 200 lbs you need 300-400 grams. Try eating that much Steak, chicken cottage cheese whatever in a day. And even if you could your grocery bill would be herendous. In conclusion whey protien is great protien. Isolates is better than the concentrates. Little Miss muffet who sat on her tuffet eating her curds and Whey must have been into bodybuilding too.

Dont believe me though its only my 12th or so post and my join date clearly shows I know nothink! lol!

great post for a new guy...you should stick around bro.

 

[MichaelScott]

wow

 

[eddymerckx]

jeeeeez Tatyana,

i was not endorsing the men health article--i just found it informative as i did not know about the difference between different types of protein powders.

Some of us have advanced degrees in disciplines other than biochem, medicine, or simply do not have the depth of knowledge that others on this board.

I am thrilled for you that you give diet and workout advice to a cover model--that fact, does not, however, have any relevant implication as to the veracity of the article at issue.

 

[Tatyana]

jeeeeez Tatyana,

i was not endorsing the men health article--i just found it informative as i did not know about the difference between different types of protein powders.

Some of us have advanced degrees in disciplines other than biochem, medicine, or simply do not have the depth of knowledge that others on this board.

I am thrilled for you that you give diet and workout advice to a cover model--that fact, does not, however, have any relevant implication as to the veracity of the article at issue.

lol!

Boy some of you lads can't take the mic very well can you..............

I thought it was funny, then again, I am on call and have had about 1.5 hours sleep (interupted)

ONE HOUR and a HALF to GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

 

[Tatyana]

Actually, now that I read it, I am not sure why you took personal offense to it.

PUT those toys back in the pram!

 

[eddymerckx]

t-
felt a little stupid for citing a mens health article--i guess i am a bit sensitive as i have not taken my armidex today
cheers

 

[Svengali]

LOL, I just about fell on the floor with that one.

I am just advocating caution.

If someone told you they wanted to get in more quality protein but they didn't have enough money, would you tell them to eat cat or dog food?

There are drugs people take that are designed for animals, I think one is called ketamine

Ketamine does have legitimate medical uses for humans..

 

[mobro]

Needto: "great post for a new guy...you should stick around bro."


eddy: "t-
felt a little stupid for citing a mens health article--i guess i am a bit sensitive as i have not taken my armidex today "
cheers


those cracked me up

 

[layinback]

i am on mini vacation, but i had to check in, i am addicted to ef. lol. this is a GREAT thread! this is civil discourse at its best. enough info, pro and con, to make your decisions. again, great thread nelson!