Guest guest Posted February 10, 2010 Report Share Posted February 10, 2010 http://bit.ly/aplw7x " Recently Curino et al. (1998) made the startling discovery that Solanum glaucophyllum cells are able to synthesise vitamin D3 and its derivatives in darkness. This is the only documented case of vitamin D3 synthesis in the absence of UV-B. Solanum glaucophyllum is a very special plant which accumulates large amounts of dihydroxy vitamin D3 as a protection against grazing mammals. Mechanisms for nonphotochemical formation of vitamin D have been proposed by Norman & Norman (1993). " This report also says " It is a widespread misconception in the literature that plants produce only provitamin D2 and vitamin D2(e.g., Buddecke 1980). Often as much provitamin D3 and vitamin D3 are produced (Zucker et al. 1980, Prema & Raghuramulu 1996). Even 1,25-dihydroxy vitamin D3 has been found in plants (Napoli et al. 1977) " Michael moderator Los Angeles Living Foods losangeleslivingfoods http://twitter.com/LALiveFoods Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 11, 2010 Report Share Posted February 11, 2010 This mentions " pro " -vitamin D3, which is surely what D2 is - we convert it in our bodies - just the same way that animals convert D2 from the plants they eat into D3 - and when humans eat animals, or vitamin tablets made from them, they eat the Vitamin D3 - the animals having done the work of converting it to D3. I would take vitamins only if they say they are suitable for vegans. Jo , Asynaps <asynaps wrote: > > http://bit.ly/aplw7x > >> This report also says " It is a widespread misconception in the literature that plants produce only provitamin D2 and vitamin D2(e.g., Buddecke 1980). Often as much provitamin D3 and vitamin D3 are produced (Zucker et al. 1980, Prema & Raghuramulu 1996). Even 1,25-dihydroxy vitamin D3 has been found in plants (Napoli et al. 1977) " > > Michael > moderator > Los Angeles Living Foods > losangeleslivingfoods > http://twitter.com/LALiveFoods > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 11, 2010 Report Share Posted February 11, 2010 Jo wrote: re: report @: http://bit.ly/aplw7x " This mentions " pro " -vitamin D3, which is surely what D2 is - we convert it in our bodies - just the same way that animals convert D2 from the plants they eat into D3 - and when humans eat animals, or vitamin tablets made from them, they eat the Vitamin D3 - the animals having done the work of converting it to D3. I would take vitamins only if they say they are suitable for vegans. " Joe, according to the report D2 comes from provitamin D2. And D3 comes from provitamin D3. Here is the quote from the report that I am referencing(bottom of page 1): " We thus have the reaction sequences... " " provitamin D2 (ergosterol) -> previtamin D2 -> vitamin D2 " " provitamin D3 (7-dehydrocholesterol) -> previtamin D3 -> vitamin D3 " Additionally, I read reports that the US FDA does not require manufacturers of food or supplements to list the source of the Vitamin D. So apparently it can be either from animal or chemically senthised(those are the only two types of D3 that I have been aware of) It may be helpful if the FDA began requiring Food and supplement manufacturers to provide source info on the D3 to allow consumers to make informed purchasing decisions. It may also allow manufacturers to distinguish themselves by requiring all manufacurers to follow same rules on this. Then consumers may have more confience in labeling that states vegan source or animal source, etc. Michael moderator Los Angeles Living Foods losangeleslivingfoods http://twitter.com/LALiveFoods Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 11, 2010 Report Share Posted February 11, 2010 Also, Napoli, et al, in 1976, publishe a report of discovering D3 being found in " Solanum glaucophyllum " ( believe it is a plant of the Tomato family). See abstract of full report at: http://bit.ly/bKzThp Or see Full text (PDF) of report at: http://bit.ly/tfctR Report Title is: " Solanum glaucophyllum as source of 1,25-dihydroxyvitamin D3. " A key quote from the abstract, " Vitamin D-deficient rats given an aqueous extract of the South American plant Solanum glaucophyllum accumulate 1,25-dihydroxyvitamin D3 in their blood and intestines at the time they show enhanced intestinal calcium absorption. " They affirm a source of D3 from a plant based source. Thanks, Michael Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 12, 2010 Report Share Posted February 12, 2010 Are there any supplements available with this source of Vitamin D that you mention? Presumably in America the supplement manufacturers would be wise to state whether the supplement is suitable for vegans. In Britain we have quite a choice, and they are labelled. Jo , Asynaps <asynaps wrote: > > Jo wrote: > re: report @: http://bit.ly/aplw7x > " This mentions " pro " -vitamin D3, which is surely what D2 is - we convert it in our bodies - just the same way that animals convert D2 from the plants they eat into D3 - and when humans eat animals, or vitamin tablets made from them, they eat the Vitamin D3 - the animals having done the work of converting it to D3. > I would take vitamins only if they say they are suitable for vegans. " > > Joe, according to the report D2 comes from provitamin D2. > And D3 comes from provitamin D3. Here is the quote from the report that I am referencing(bottom of page 1): > > " We thus have the reaction sequences... " > " provitamin D2 (ergosterol) -> previtamin D2 -> vitamin D2 " > " provitamin D3 (7-dehydrocholesterol) -> previtamin D3 -> vitamin D3 " > > Additionally, I read reports that the US FDA does not require manufacturers of food or supplements to list the source of the Vitamin D. So apparently it can be either from animal or chemically senthised(those are the only two types of D3 that I have been aware of) > > It may be helpful if the FDA began requiring Food and supplement manufacturers to provide source info on the D3 to allow consumers to make informed purchasing decisions. It may also allow manufacturers to distinguish themselves by requiring all manufacurers to follow same rules on this. Then consumers may have more confience in labeling that states vegan source or animal source, etc. > > Michael > moderator > Los Angeles Living Foods > losangeleslivingfoods > http://twitter.com/LALiveFoods > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 13, 2010 Report Share Posted February 13, 2010 I don't know of any that use that source for D3. , " heartwerk " <jo.heartwork wrote: > > Are there any supplements available with this source of Vitamin D that you mention? > > Presumably in America the supplement manufacturers would be wise to state whether the supplement is suitable for vegans. In Britain we have quite a choice, and they are labelled. > > Jo Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2010 Report Share Posted February 15, 2010 Therefore we need look only for D2 when choosing supplements as all supplements containing vitamin D3 will be animal-derived. Jo , " asynaps " <asynaps wrote: > > I don't know of any that use that source for D3. > > , " heartwerk " <jo.heartwork@> wrote: > > > > Are there any supplements available with this source of Vitamin D that you mention? > > > > Presumably in America the supplement manufacturers would be wise to state whether the supplement is suitable for vegans. In Britain we have quite a choice, and they are labelled. > > > > Jo > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 16, 2010 Report Share Posted February 16, 2010 In the USA, there are no regulations reguiring manufacturers of supplements to disclose origin of D.. whether D2 or D3, being animal-derived or not. , " heartwerk " <jo.heartwork wrote: > > Therefore we need look only for D2 when choosing supplements as all supplements containing vitamin D3 will be animal-derived. > > Jo Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 17, 2010 Report Share Posted February 17, 2010 Maybe you could buy British ones online then. Jo On Behalf Of asynaps 16 February 2010 04:27 Re: Plants produce D3 too... report In the USA, there are no regulations reguiring manufacturers of supplements to disclose origin of D.. whether D2 or D3, being animal-derived or not. , " heartwerk " <jo.heartwork wrote: > > Therefore we need look only for D2 when choosing supplements as all supplements containing vitamin D3 will be animal-derived. > > Jo Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 17, 2010 Report Share Posted February 17, 2010 sunny and in the 70's here i'll just sit outside "jo.heartwork" Feb 16, 2010 7:32 PM RE: Re: Plants produce D3 too... report Maybe you could buy British ones online then. Jo On Behalf Of asynaps16 February 2010 04:27 Subject: Re: Plants produce D3 too... report In the USA, there are no regulations reguiring manufacturers of supplements to disclose origin of D.. whether D2 or D3, being animal-derived or not. , "heartwerk" <jo.heartwork wrote:>> Therefore we need look only for D2 when choosing supplements as all supplements containing vitamin D3 will be animal-derived.> > Jo You're just jealous because the voices only talk to me! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 17, 2010 Report Share Posted February 17, 2010 It's foggy here this morning - yesterday was raining on and off. I think we've seen sun on a couple of days over the last month! Jo Fraggle wrote: RE: Re: Plants produce D3 too... report sunny and in the 70's here i'll just sit outside Quote Link to comment Share on other sites More sharing options...
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