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Vitamin A - definition from Biology-Online.org
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Vitamin A

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Re:

Or maybe something like Vitamin C. It is an antioxidant, but if you get too much it has just the opposite effect. This is actually not correct. Of the "simple" vitamins, only A, D, E, and K can pose a problem when you have ...

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by jyaron
Fri Aug 14, 2009 2:17 am
 
Forum: Microbiology
Topic: Is Spirulina really good for our health ?
Replies: 13
Views: 10621

Stomach bloating and weight gain

... a 3 mile trail run is my favorite exercise to do every other day during the summer/warm fall season. I also take the supplements of omega oils, Vitamin B-12 (actually a B-complex), chlorella, vitamin D (blood test showed that it was low), and my newest experiment is resveratrol and nattokinase ...

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by kolean
Tue Jul 21, 2009 4:45 pm
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 299
Views: 485007

Why do Africans have large noses and lips?

... migration. An example is white skin which was a mutation that aided the humans living in colder regions, so that their skin could absorb more vitamin D into their bodies from the sun. As to the large noses and lips of some Africans, I'm not really sure what purpose they served as East Africans ...

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by Luis
Fri Jul 03, 2009 8:28 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 5
Views: 643

Re: Any SOLID arguments against evolution?

... understanding of white-skin origin is that after diverging from african populations, northern populations lost pigment in a selective response to vitamin deficiency. ?? It is also my understanding that "black" people are also a divergence from the evolutionary predecessors, who were ...

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by AstusAleator
Sat May 30, 2009 12:57 am
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 106
Views: 16728

Question about copper and Wilson disease??

Copper is an element not a complex molecule like a vitamin, and unless you are a star or a fusion nuclear reactor, no synthesis of elements de novo is possible. That is why nobody actually cares to point that out.

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by canalon
Mon May 11, 2009 6:11 pm
 
Forum: Human Biology
Topic: Question about copper and Wilson disease??
Replies: 3
Views: 631
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