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Vitamin E: Another reason to get your vitamins from food

post #1 of 14
Thread Starter 
I decided to look into vitamin E a little bit (haven't gotten far yet but I've started).
First thing I learned: vitamin E is actually eight different antioxidants within the same family. Second thing I learned, vitamin E loses its antioxidant "power" when it neutralizes a free radical, but that "power" can be restored by another antioxidant which isn't effected in the same manner (for example, vitamin C).

From this site:
Quote:
Several other functions of alpha-tocopherol have been identified that are not likely related to its antioxidant capacity. For instance, alpha-tocopherol is known to inhibit the activity of protein kinase C, an important cell-signaling molecule. Alpha-tocopherol appears to also affect the expression and activities of molecules and enzymes in immune and inflammatory cells. Additionally, alpha-tocopherol has been shown to inhibit platelet aggregation and to enhance vasodilation (4, 5).
(alpha-tocopherol is one form of vitamin E)

Wikipedia has this to say about Protein kinase C (PKC):
Quote:
A multiplicity of functions have been ascribed to PKC. Recurring themes are that PKC is involved in receptor desensitization, in modulating membrane structure events, in regulating transcription, in mediating immune responses, in regulating cell growth, and in learning and memory.
One of the functions which PKC controls is the stimulation of enzymes responsible for sodium-potassium balance within the body and within cells. Stimulation of one of these enzymes tells cells to keep potassium and get rid of sodium. It also has an effect on the Purines and the citric cycles.

As I said, I haven't gotten very far into it yet, but I intend to do more in the next couple of days. It really seems like this may be a key component of what we've been researching, just based on what I've seen thus far.
That's all I have time to write for now, but there is a reason for the title.
post #2 of 14
subbing... curious about the benefits of E (and the repercussions of deficiency), because we have almost none in our current diet.
post #3 of 14
Thread Starter 
CS: 1 cup of blueberries has just over 7% of your daily needs and 1 cup of broccoli has almost 4%. It's not much, but it's something.

From the WHFoods website:
Quote:
What events can indicate a need for more high-vitamin E foods?

* Digestive system problems, especially malabsorption
* Tingling or loss of sensation in the arms, hands, legs, or feet
* Liver or gallbladder problems
I find the malabsorption part particularly interesting.
post #4 of 14
Thread Starter 
Olives (and olive oil) are a good source of vitamin E.
Unrefined palm or coconut oil are also good sources.

Also of interest is that zinc deficiency causes decreased blood levels of vitamin E.
post #5 of 14
That is interesting. I guess I should trial the coconut oil again!
post #6 of 14
Quote:
Originally Posted by changingseasons View Post
That is interesting. I guess I should trial the coconut oil again!
Have you tried the unrefined palm oil? I find that the flavor does not mix well with many foods, but I do believe it would be nice with lamb. There is a lot of nutrition in it.
post #7 of 14
Quote:
Originally Posted by Mammo2Sammo View Post
Have you tried the unrefined palm oil? I find that the flavor does not mix well with many foods, but I do believe it would be nice with lamb. There is a lot of nutrition in it.
I haven't. It's one of those things on my list, just haven't gotten around to it yet...
post #8 of 14
Maybe it was on the WAPF site? I read a theory that our need for vitamin E is somewhat related to the types of fat we eat, and the more polyunsaturated fats (not sure if it lumped monounsaturated in as well), the more E we need, but E often comes in foods that have polyunsaturated fat, things like nuts and olive oil to some extent (presuming one eats whole foods, of course ). It was an interesting idea, but I don't know much because it's one of the few vitamins out there that I haven't seen real signs of deficiency in for one of us.

eta--cool topic, Jacqueline, I'll keep lurking to learn more.
post #9 of 14
Thread Starter 
Quote:
Originally Posted by TanyaLopez View Post
Maybe it was on the WAPF site? I read a theory that our need for vitamin E is somewhat related to the types of fat we eat, and the more polyunsaturated fats (not sure if it lumped monounsaturated in as well), the more E we need, but E often comes in foods that have polyunsaturated fat, things like nuts and olive oil to some extent (presuming one eats whole foods, of course ). It was an interesting idea, but I don't know much because it's one of the few vitamins out there that I haven't seen real signs of deficiency in for one of us.

eta--cool topic, Jacqueline, I'll keep lurking to learn more.
What was on the WAPF site?

From WHFoods:
Quote:
In many research studies, low levels of vitamin E are associated with digestive system problems where nutrients are poorly absorbed from the digestive tract. These problems include pancreatic disease, gallbladder disease, liver disease, and celiac disease.
and
Quote:
Vitamin E supplements, when taken in very high doses of 3000 IU or more, have been shown to have toxic effects. These effects include intestinal cramps and diarrhea, fatigue, double vision, and muscle weakness. Below the 3000 IU level, the research on vitamin E toxicity is inconsistent, but the majority of studies do not demonstrate toxic effects.
Thought those two quotes were relevant.
Also thought you'd like to know that higher doses of vitamin E can be dangerous in people who are vitamin K deficient, Tanya. It interferes with K's activities, preventing clotting and increasing bleeding. It shouldn't be taken if one is taking anti-coagulants, anti-platelet drugs and NSAIDS. Anti-convulsants and cholesterol lowering drugs lower the body's supply of vitamin E.
post #10 of 14
Sorry about my bad sentence--I don't remember where I read that vitE can/should correlate to type of fat consumed.

And good reminder about the K issue. I've thought about that more, and I don't think it's related to salicylates--that was one possibility, but salicylates should be related to how overburdened our detox pathways are, and we've swung from being quite caught-up last spring/summer to being really behind now, and I'm seeing symptom differences in my son, but the need for K hasn't changed (we set it at a good time, so now that it's bad, it should've gone up and we should be getting nosebleeds--but we're not! ). I hope I'm seeing this correctly and not just trying to justify not messing around with yet another dietary change. Cause I think we're about to lose big corn (not little trace corn, I doubt, but I think corn chips and corn tortillas are goin' bye-bye).
post #11 of 14
Quote:
Originally Posted by TanyaLopez View Post
Maybe it was on the WAPF site? I read a theory that our need for vitamin E is somewhat related to the types of fat we eat, and the more polyunsaturated fats (not sure if it lumped monounsaturated in as well), the more E we need, but E often comes in foods that have polyunsaturated fat, things like nuts and olive oil to some extent (presuming one eats whole foods, of course ). It was an interesting idea, but I don't know much because it's one of the few vitamins out there that I haven't seen real signs of deficiency in for one of us.
They were talking about that on the beyondprice list.
post #12 of 14
Thread Starter 
Quote:
Originally Posted by whoMe View Post
They were talking about that on the beyondprice list.
I don't know how you ladies keep up with more than just MDC. I have a hard enough time just keeping up with one FORUM on MDC.
post #13 of 14
Quote:
Originally Posted by JacquelineR View Post
I don't know how you ladies keep up with more than just MDC. I have a hard enough time just keeping up with one FORUM on MDC.
I read them sometimes when I'm bored. That hasn't happened yet this year... When did I get that MTHFR lab back?
post #14 of 14
Thread Starter 
Vitamin E may be used to synthesize taurine. (Need to research this further.)

Works in concert with glutathione (keeps C active), vitamin B3 (niacin- but specifically a form called NADPH), selenium and vitamin C (keeps E metabolically active) to prevent cell damage from oxidative stress. B3 and selenium keep glutathione active.
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