Guest guest Posted August 17, 2002 Report Share Posted August 17, 2002 Now I'm confused... http://www.rwood.com/Questions/q_aug_01_2001.htm says that kefir has mostly " right-turning " lactic acid, and that " left-turning " is potentially harmful. To quote: " Even compared to a non-pasteurized yogurt (most yogurts are heat-treated for increased shelf life), kefir is superior because of the direction its lactic acid bacteria turn. Kefir contains primarily right-turning lactic acid (R-TLA) whereas yogurt's lactic acid primarily turns left (L-TLA). According to the United Nations Food and Agricultural Organization, adults should limit their consumption of L-TLA and babies and toddlers should avoid it altogether because L-TLA can cause acidosis and upset the body's mineral balance and metabolism. There is no limit to R-TLA consumption. The right-turning bacteria enhance oxygen intake and intestinal activity and are indispensable cofactors in the prevention and treatment of all malignant conditions. " Below as it is described, L molecules are food substances, and R molecules are less desirable. Can anybody clarify? Many thanks- Linnea ----- Original Message ----- From: dkemnitz2000 <dkemnitz2000@...> < > Sent: Friday, August 16, 2002 4:26 PM Subject: Re: Yogurt Question > > > Just thought I would add a little something here. > > > > I . > > <><><><><><><><><><<>Kat some molecules have a mirror image not > all. However, lactic has the D and L forms. I didn't know about the > nutritional value of L versus D except in the case of lactic acid. I > wrote something earlier about asymmetric carbon atoms and mirror > images cause the chem 101 book, interestingly enough, used lactic > acid as the example. Dennis > > ><<<<><><><><><>>><< > > All molecules have a mirror L = left and D = right. L-molecules > are food > > substances and the D-molecules are not. Many of the commercial > products are > > made with the cheaper D-molecule, or the non-food molecule. > > > > It is amazing how my taste buds did not know the difference, but my > body > > sure did! > > > > Kat > > > > http://www.katking.com > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 18, 2002 Report Share Posted August 18, 2002 When I started this whole thing about the L and D molecules, I was speaking of lactic acid. The article you found about the difference between yogurt and kefir is very interesting, thank you. I want to look into this more. If I am reading it right, it talks about the SPIN of the molecules in yogurt and kefir affects us. Never heard of this, but then I am not a chemist either. I was referring to the presence or absence of the L or D molecule. The commercial salad dressing, most non-raw vinegar, and fermented products make me immediately feel ill. When I found out that most commercial products use a cheap, chemical form of lactic acid, I began to understand why my homemade products not only don't make me feel ill, but improve my digestion! Thanks again! Kat http://www.katking.com ----- Original Message ----- From: " darkstardog " <darkstar@...> < > Sent: Sunday, August 18, 2002 11:21 AM Subject: lactic acid was Re: Yogurt Question > > > Now I'm confused... > > > > http://www.rwood.com/Questions/q_aug_01_2001.htm > > > > says that kefir has mostly " right-turning " lactic acid, and that > > " left-turning " is potentially harmful. > > > > To quote: " Even compared to a non-pasteurized yogurt (most yogurts > are heat-treated for increased shelf life), kefir is superior because > of the directin its lactic acid bacteria turn. Kefir contains > primarily right-turning lactic acid (R-TLA) whereas yogurt's lactic > acid primarily turns left (L-TLA). According to the United Nations > Food and Agricultural> Organization, adults should limit their > consumption of L-TLA and babies and> toddlers should avoid it > altogether because L-TLA can cause acidosis and upset the body's > mineral balance and metabolism. > > Well, I'm totally confused and I'm going to email that website. > > L-TLA - that's a weird way to say it. Why not just L-lactate? > > The whole subject is more complicated and with less ready info than I > expected. It's apparently the L kind we make, but there's some data > that suggests we might be able to use the D kind too. Weird, I had no > idea about this, that bacteria might be making a different kind from > what we make. I did see some papers discussing possible problems from > too mcuh of the D type in certain situations, but I couldn't read > enough to understand the whole issue. If I can get more info I'll > post it. > > (It's not true that only the L form of molecules are natural. We use > L amino acids, but we use D glucose. So it depends on the specific > type of molecule.) > > martha > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 18, 2002 Report Share Posted August 18, 2002 ----- Original Message ----- From: " Katanne1890 " <katanne1890@...> > If I am reading it right, it talks about the SPIN of the molecules in yogurt > and kefir affects us. Never heard of this, but then I am not a chemist > either. Molecules don't have spin. She was talking about the L and D forms. Quote Link to comment Share on other sites More sharing options...
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