There are some mercury vapor lamps that put out a surprising amount of uvb. That is why they've become so popular.

It's not really D3 that is needed but D2... I could be wrong here but that is what I remember... D3 is converted to D2 by uvb... I think.

Theres on post on this and other lists... Calcium Metabolism... so a search and you should find a post of mine where it explains calcium metabolism in detail.

Ed

yes i belive it is converted ed atleast we agree on sumin eh!

Yea I found a post u posted, but it was a giant wall of text filled with scientific know-how and abbreviations and I didn't get past the 3rd sentence.
I'll take your word for it. Thanks.

Believe it or not I love that post, which I'm not the author of, because it is one of the most simple explanations of the mechanism for the relationship between vitamin D and calcium.

Ed

a member only one day and you've disagreed with everything I've posted... That's gotta be some kind of record.

but I'm glad we agree on this...

Ed

you made me laugh out loud. Cheers Ed, you never fail to make me smile.

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Andy/Claire.....breast feeding is best???? A very poor comparison in my opinion.

Breast feeding MAY be best for those of us who are living in a fairly affluent society...but tell that to those who live in poverty, for their children to have the best nutrition...the bottle is a neccessity. So unless you are a hundred percent sure you are providing the best, most nutritious balanced diet to humans, mammals, reptiles etc...then dont knock what is offered/researched/used.

On a more personal note...I breast fed 3 and bottle fed 3....no difference at all, all in their 20's to 30's and nothing marks one group out from the other.....

sorry that was me lol i was at my brothers

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home sweet home

fair point helen ,i was giving a example not talking poverty,

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home sweet home