Quote (LuLer @ 16 Jun 2013 16:23)
Much healthier, too, if you can get enough protein through other sources
I dont think so.
Proteins that are derived from animal sources contain amino acids that are more similar in proportion to the body's needs. Plant protein sources are of lower biological value, and are often low in certain amino acids such as lysine and cysteine.
Read more:
http://www.livestrong.com/article/315856-animal-protein-vs-vegetable-protein/#ixzz2WQZVdtg7We have information that the primary difference between animal and plant proteins is their amino acid profiles and it is those profiles that direct the rates at which the absorbed amino acids are put to use within the body. Animal based proteins, of course, are much more similar to our proteins, thus are used more readily and rapidly than plant proteins. That is, 'substrate' amino acids derived from animal based proteins are more readily available for our own protein synthesizing reactions which allows them to operate at full tilt. Plant proteins are somewhat compromised by their limitation of one or more amino acids. When we restore the relatively deficient amino acid in a plant protein, we get a response rate equivalent to animal proteins. My own lab produced experimental data to support this view--and of course, similar observations of years past in other laboratories can also be interpreted in this way.
Animal proteins also have a higher concentration of sulphur containing amino acids that get metabolized to acid-generating metabolites. As a result, a slightly lower physiological pH must be corrected and buffers like calcium are used to attenuate these adverse acid effects--to the disadvantage of the host.
The only think i see that make the vegetable proteine better.Vegetable protein such as soy has no cholesterol and just 1 percent of the daily recommended value for fat. The strong link between a high-fat, high-cholesterol diet and heart disease gives vegetable protein a huge advantage in this respect.
Read more:
http://www.livestrong.com/article/315856-animal-protein-vs-vegetable-protein/#ixzz2WQZkRsIJ