Need Good Proof that Whey Protien Works

[elf2]

A couple of friends keep telling me that my protien shakes that I'm taking don't work. I know they do, but I need some good websites in which I can give them to show them that it does.

I would show them my body but I've only been using it for 2 months...

[schroeder84]

http://forum.bodybuilding.com/showthread.php?t=146844

[rmat16]

How ignorant does a person have to be to say that protein shakes don't work? I mean, come on. Protein. Your friend is probably one of those people who thinks that anything in pill-form is bad, protein makes you fat, and creatine messes with your liver. I have a couple of these friends .

[kendog]

Tell them not to eat protein for a couple weeks and theyll see that protein works.

Afterall, whey IS protein, there is no doubt about that, and there is no doubt that protein aids in healing muscles, wheres the problem?

[chlaxman]

The effect of resistance training combined with timed ingestion of protein on muscle fiber size and muscle strength.

Andersen LL, Tufekovic G, Zebis MK, Crameri RM, Verlaan G, Kjaer M, Suetta C, Magnusson P, Aagaard P.

Sports Medicine Research, Unit/Team Denmark Test Center, Bispebjerg Hospital, DK-2400 Copenhagen, Denmark. LL_andersen@hotmail.com

Acute muscle protein metabolism is modulated not only by resistance exercise but also by amino acids. However, less is known about the long-term hypertrophic effect of protein supplementation in combination with resistance training. The present study was designed to compare the effect of 14 weeks of resistance training combined with timed ingestion of isoenergetic protein vs carbohydrate supplementation on muscle fiber hypertrophy and mechanical muscle performance. Supplementation was administered before and immediately after each training bout and, in addition, in the morning on nontraining days. Muscle biopsy specimens were obtained from the vastus lateralis muscle and analyzed for muscle fiber cross-sectional area. Squat jump and countermovement jump were performed on a force platform to determine vertical jump height. Peak torque during slow (30 degrees s-1) and fast (240 degrees s-1) concentric and eccentric contractions of the knee extensor muscle was measured in an isokinetic dynamometer. After 14 weeks of resistance training, the protein group showed hypertrophy of type I (18% +/- 5%; P < .01) and type II (26% +/- 5%; P < .01) muscle fibers, whereas no change above baseline occurred in the carbohydrate group. Squat jump height increased only in the protein group, whereas countermovement jump height and peak torque during slow isokinetic muscle contraction increased similarly in both groups. In conclusion, a minor advantage of protein supplementation over carbohydrate supplementation during resistance training on mechanical muscle function was found. However, the present results may have relevance for individuals who are particularly interested in gaining muscle size.

http://www.ncbi.nlm.nih.gov/entrez/q..._uids=15690307