Jump to content

User talk:GeeOh

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

Welcome, GeeOh!

Here are some useful tips to ease you into the Wikipedia experience:

Also, here are some odds and ends that I find useful from time to time:

Feel free to ask me anything the links and talk pages don't answer. You can most easily reach me by posting on my talk page.

You can sign your name on any page by typing 4 tildes, likes this: ~~~~.

Best of luck, and have fun! – ClockworkSoul 06:39, 4 May 2006 (UTC)[reply]

Protein in nutrition

[edit]

I am confused by some edits you made to protein in nutrition. The original paragraph was:

Dietary sources of protein include meats, eggs, grains, legumes, and dairy products such as milk and cheese. Different protein sources have differing proportions of essential amino acids; therefore a variety of protein sources provides a full complement of the essential amino acids. There are certain sources (e.g. meat and soy) that provide all the essential amino acids: see complete protein.

You changed this paragraph to:

Dietary sources of protein include meats, eggs, grains, legumes, and dairy products such as milk and cheese. Animal sources of proteins have the complete complement of all twenty amino acids. Vegetable sources are deficient in amino acids and their proteins are said to be incomplete. For example, most legumes typically lack four, including the essential amino acid methionine, while grains lack two, three, or four, including the essential amino acid lysine. See complete protein.

The new wording is misleading. As you seem to be aware, only 8-10 amino acids are not synthesized by humans (and are thereby 'essential'). The presence of the other 10-12 nonessential amino acids is irrelevant, because they are not necessary for good nutrition. All that matters in nutrition is the presence of the essential amino acids. That is why the paragraph originally discussed the essential amino acids only, and their complete presence in both animal and some vegetable sources. The conception that animal sources are complete in protein and vegetable sources are always deficient is a popular notion in lay society, but it neither relevant to nutrition or supported by contemporary nutritionists. Complete protein provides an incomplete list of vegetable sources of complete proteins, although now that article contradicts itself because someone added your paragraph to it. For these reasons, I will restore the previous version of the paragraph, and welcome your comments. -kotra (talk) 20:51, 11 December 2007 (UTC)[reply]