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Beta Carotene Question
Quote from Guest on October 18, 2018, 3:36 pm
I am reading in various studies that beta-carotene is poorly absorbed and that there is a very tight regulation of beta-carotene ---> retinol conversion in the body. If the body is saturated with Vitamin A, then there is good chance beta-carotene is not being absorbed.
Beta carotene also shown to be inversely correlated with arthritic gout, while vitamin A was positively correlated. I ask because I think green vegetables a good source of vitamin K and calcium, as well as helping restore alkalinity in the body. I would like to be able to use them.
Do any of you have thoughts on this? Is it not correct? Or is there something else that we are missing that is wrong with us that leads to an inability to safely process beta-carotene and any retinol-like molecule?
Thanks.
I am reading in various studies that beta-carotene is poorly absorbed and that there is a very tight regulation of beta-carotene ---> retinol conversion in the body. If the body is saturated with Vitamin A, then there is good chance beta-carotene is not being absorbed.
Beta carotene also shown to be inversely correlated with arthritic gout, while vitamin A was positively correlated. I ask because I think green vegetables a good source of vitamin K and calcium, as well as helping restore alkalinity in the body. I would like to be able to use them.
Do any of you have thoughts on this? Is it not correct? Or is there something else that we are missing that is wrong with us that leads to an inability to safely process beta-carotene and any retinol-like molecule?
Thanks.
Quote from
ggenereux on October 20, 2018, 9:50 pm
Please don’t believe everything you read. There are a number of people who have reported that they have gotten themselves into a serious state of retinoid toxicity just by routinely eating sweet potatoes. So, the reported "tight regulation" of beta-carotene ---> retinol conversion is very likely just more bad science.
Here's a recent story from our CBC news. Please look very closely at the skin of these people in this video. And then listen to the reporter’s comment at ~ 4:00, : "Sweet potatoes, it's the only vegetable they can grow here"
http://www.cbc.ca/news/thenational/china-s-lifeline-express-is-helping-many-in-rural-areas-see-again-thanks-to-free-cataract-surgery-1.4477385
These people have been consuming tons of beta-carotene, and they are getting tons of diseases, and cataracts, to go along with it. So much for that “tight regulation” concept. It looks to be another a myth.
Please don’t believe everything you read. There are a number of people who have reported that they have gotten themselves into a serious state of retinoid toxicity just by routinely eating sweet potatoes. So, the reported "tight regulation" of beta-carotene ---> retinol conversion is very likely just more bad science.
Here's a recent story from our CBC news. Please look very closely at the skin of these people in this video. And then listen to the reporter’s comment at ~ 4:00, : "Sweet potatoes, it's the only vegetable they can grow here"
http://www.cbc.ca/news/thenational/china-s-lifeline-express-is-helping-many-in-rural-areas-see-again-thanks-to-free-cataract-surgery-1.4477385
These people have been consuming tons of beta-carotene, and they are getting tons of diseases, and cataracts, to go along with it. So much for that “tight regulation” concept. It looks to be another a myth.
Quote from Guest on October 21, 2018, 9:57 am
So interesting. I think my daughter has caused herself eczema problems eating excessive sweet potatoes & butternut squash. She possibly inherited an amount of vit A from me & has now added to it.
So interesting. I think my daughter has caused herself eczema problems eating excessive sweet potatoes & butternut squash. She possibly inherited an amount of vit A from me & has now added to it.
Quote from
Jenny on October 22, 2018, 12:54 am
I've worked out how to log in now! I think that the beta-carotene thing is going to be the aspect of this that people in nutrition find the hardest to accept. Having trained as a nutritional therapist for the last three years - it's all about 'eating a rainbow' 🌈
I have passed on links to the ebooks to my cohort who are just starting to see clients. They readily accept that vitamin A supplements could be bad news but accepting that sweet potatos & butternut squash is toxic to some people involves a huge paradigm shift.
I've worked out how to log in now! I think that the beta-carotene thing is going to be the aspect of this that people in nutrition find the hardest to accept. Having trained as a nutritional therapist for the last three years - it's all about 'eating a rainbow' 🌈
I have passed on links to the ebooks to my cohort who are just starting to see clients. They readily accept that vitamin A supplements could be bad news but accepting that sweet potatos & butternut squash is toxic to some people involves a huge paradigm shift.
Doublecapricorn and Andrew B have reacted to this post.
Quote from Guest on November 1, 2018, 10:06 am
I will also work out how to log in 🙂 soon
So true about the paradigm shift. I think the key is to have people truly understand the mechanism first. Sweet potatoes or any any other vitamin A sources Are to be avoided only after the liver has become saturated with retinol and unable to store more of it. If I understood it right.
I will also work out how to log in 🙂 soon
So true about the paradigm shift. I think the key is to have people truly understand the mechanism first. Sweet potatoes or any any other vitamin A sources Are to be avoided only after the liver has become saturated with retinol and unable to store more of it. If I understood it right.
Quote from
Jenny on November 2, 2018, 2:24 pm
Yes totally that's my understanding too. However, looking at how much vitamin A sweet potatoes contain I do wonder if they are worth bothering with at all - why fill up the liver quicker when you can stick to a normal potato? My daughter eats them (sweet potatoes) all the time and has now got eczema. Coincidence? I doubt it.
Yes totally that's my understanding too. However, looking at how much vitamin A sweet potatoes contain I do wonder if they are worth bothering with at all - why fill up the liver quicker when you can stick to a normal potato? My daughter eats them (sweet potatoes) all the time and has now got eczema. Coincidence? I doubt it.
Andrew B has reacted to this post.
Hi JAJ - we're you at CNM, by any chance? I was there for a year, but left.
It's interesting to consider what role carotenoids have in the plant. Supposedly they are there to aid photosynthesis and protect chlorophyll, but since they're found in underground vegetables, I doubt this. Why would a carrot contain carotenoids and not a parsnip, why a white potato and not a sweet potato? Dr. G Smith's idea is that they're plant defence compounds. There might be something to this.
I believe that oxidation is another mechanism by which they inflict damage, due to the unsaturated quality of the molecule. Plants containing higher amounts of carotene tend to contain higher amounts of vitamin E. This is analogous to the situation with nuts and seeds, where seeds containing more unsaturated fat contain greater quantities of vitamin E to prevent it's oxidation.
Hi JAJ - we're you at CNM, by any chance? I was there for a year, but left.
It's interesting to consider what role carotenoids have in the plant. Supposedly they are there to aid photosynthesis and protect chlorophyll, but since they're found in underground vegetables, I doubt this. Why would a carrot contain carotenoids and not a parsnip, why a white potato and not a sweet potato? Dr. G Smith's idea is that they're plant defence compounds. There might be something to this.
I believe that oxidation is another mechanism by which they inflict damage, due to the unsaturated quality of the molecule. Plants containing higher amounts of carotene tend to contain higher amounts of vitamin E. This is analogous to the situation with nuts and seeds, where seeds containing more unsaturated fat contain greater quantities of vitamin E to prevent it's oxidation.
Quote from Guest on December 15, 2018, 6:43 am
Quote from harrymacdonald on November 5, 2018, 2:37 pm
Hi JAJ - we're you at CNM, by any chance? I was there for a year, but left.
It's interesting to consider what role carotenoids have in the plant. Supposedly they are there to aid photosynthesis and protect chlorophyll, but since they're found in underground vegetables, I doubt this. Why would a carrot contain carotenoids and not a parsnip, why a white potato and not a sweet potato? Dr. G Smith's idea is that they're plant defence compounds. There might be something to this.
I believe that oxidation is another mechanism by which they inflict damage, due to the unsaturated quality of the molecule. Plants containing higher amounts of carotene tend to contain higher amounts of vitamin E. This is analogous to the situation with nuts and seeds, where seeds containing more unsaturated fat contain greater quantities of vitamin E to prevent it's oxidation.
hybridized plants don't have to have a evolutionary reason for why they are like they are, for example orange carrots were grown only because humans like orange, and to glorify the prince of orange in the netherlands. white carots exist.
Quote from harrymacdonald on November 5, 2018, 2:37 pm
Hi JAJ - we're you at CNM, by any chance? I was there for a year, but left.
It's interesting to consider what role carotenoids have in the plant. Supposedly they are there to aid photosynthesis and protect chlorophyll, but since they're found in underground vegetables, I doubt this. Why would a carrot contain carotenoids and not a parsnip, why a white potato and not a sweet potato? Dr. G Smith's idea is that they're plant defence compounds. There might be something to this.
I believe that oxidation is another mechanism by which they inflict damage, due to the unsaturated quality of the molecule. Plants containing higher amounts of carotene tend to contain higher amounts of vitamin E. This is analogous to the situation with nuts and seeds, where seeds containing more unsaturated fat contain greater quantities of vitamin E to prevent it's oxidation.
hybridized plants don't have to have a evolutionary reason for why they are like they are, for example orange carrots were grown only because humans like orange, and to glorify the prince of orange in the netherlands. white carots exist.
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