mechtech's picture
mechtech
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Is protein just protein?

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Does it matter where the protein comes from or is there really a difference in the protein I get from my whey protein shake vs. chicken? I know that there are other important nutrients that go along with the proteins like the healthy fats you get from eating nuts and fish as compared to eating a fatty rib-eye, but are the proteins contained in these foods the same?

roflbbq's picture

no, protein is not just protein. there are vast differences in quality of proteins based on composition of amino acids, utilization, digestibility, etc. very rough rule of thumb might be. There are some scales available for protein quality, some common ones being PDCAAS (Protein Digestibility Corrected Amino Acid Score), NPU (Net protein utilization),

meats/dairy/eggs/seafood>grains>veggies/fruits

You could get seriously nerdy about stuff like this if that's your interest, pick up Lyle Mcdonald's "Protein Book". Some known researchers in proteins include Tipton, Hoffman, Philips.

Of course, just realize this is probably overkill for anyone who isn't interested in biochemistry. If you eat at least .75-1g protein/lb of bw, you have most likely covered your bases.

DBG's picture

LOL...what happened, did you ding me first and then correct it? No big deal, I don't care...karma-shmarma..I'll survive.
That's why I don't give people points when I am on my phone...sometimes I would tell them in the post that once I get home and get on, I'll hit 'em up then, hahaha.
One time I dinged somebody for giving out some awesome info because it's hard as hell to hit the thumbs up on a phone!!

DBG's picture

Yes it matters...some protein is better than others...it boils down to bioavailability and the pH of the protein source. I know tuna really isn't that great as it is very acidic, whereas chicken is right in the middle...hence why everyone ALSO eats alot of chicken besides it being lower in fat. BUT whey is very high alkalinity-wise and is really the best bio-available protein..eggs are a close second.

So then it comes down to eating them at the right times of the day...eggs in the AM, chicken and fish(es) during the day and fatty red meat and fattier fish in the evening!! Whey and powders have their place, for me as fillers here and there and around workouts, wake-up and bedtime.

fast48's picture

You're awesome!

mechtech's picture

Thanks for the reply. I usually have a whey shake in the morning with breakfast and one in the evening before bed. My diet consists mainly of eggs, tuna, tilapia, and chicken. Not a real big fan of read meat unless it's a big greasy cheeseburger, and I really try to stay away from those.

DBG's picture

make that bedtime shake a casein shake or a whey/casein shake. just whey and your body doesn't have enough protection throughout the night.
whey produces a rapid spike in your amino acid levels and then levels off after about two hours whereas casein begins its amino acid breakdown at about two hours after consumption and then steadily releases a stream of aminos for about five hours afterward giving you PLENTY of catabolic protection druing your nightly fast!!

eliot_99's picture

Yes it matters a lot! In short "structure=function"

boom88's picture

Quality of protein from whole foods is typically higher quality than protein shakes. So yes it does make a difference. Quality of gains will be better with a good calories surplus diet of clean foods vs just getting protein from shakes