Re: Vitamin A supplement Question

[Guest guest]

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> http://www.nowfoods.com/?action=itemdetail & item_id=2946

>

> Its pure retinol extracted from fish liver oil and its only 2 pennies

> a serving for 10,000 IU (from iherb.com). It does have soybean oil

> (its a very little gelcap so probably 1/10th teaspoon or less) but she

> doesn't avoid GMO's anyway.

Carlson's is about the same except it uses safflower oil, so maybe

it's GM-free. I don't know if there's any GM safflower in the wild

yet, or whether there's been contamination. Certainly it's not as

prevalent as GM soy, anyway.

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[Guest guest]

Thanks for the heads up , I think the safflower vitamin A sounds

better.

If I was taking this and was also taking Jarrows MK-7 (which is like

%107 DV, once a day) and getting plenty of sunshine what would the

optimum dosage be?

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>

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>

> > http://www.nowfoods.com/?action=itemdetail & item_id=2946

> >

> > Its pure retinol extracted from fish liver oil and its only 2 pennies

> > a serving for 10,000 IU (from iherb.com). It does have soybean oil

> > (its a very little gelcap so probably 1/10th teaspoon or less) but she

> > doesn't avoid GMO's anyway.

>

> Carlson's is about the same except it uses safflower oil, so maybe

> it's GM-free. I don't know if there's any GM safflower in the wild

> yet, or whether there's been contamination. Certainly it's not as

> prevalent as GM soy, anyway.

>

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>

>

[Guest guest]

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> If I was taking this and was also taking Jarrows MK-7 (which is like

> %107 DV, once a day) and getting plenty of sunshine what would the

> optimum dosage be?

would be much better equipped to answer that question, but I

suspect there is no one-size-fits-all answer anyway. It depends on

your needs and on many different aspects of your current physiological

state. Jarrow's K2 supplement, though, is pretty poor IMO. First,

it's MK-7 and not MK-4, and so far it appears that MK-4 is what is

directly physiologically useful. Second, RDA aside, the dosage is

ludicrously low -- 90 MICROgrams. IIRC there was a study of Japanese

women in which they received 45 MILLIgrams a day for several years

with no adverse effects and plenty of benefits. (I don't remember

whether they were taking MK-7 or MK-4, but MK-7 is largely turned into

MK-4 in the body anyway.) And a healthy animal-food-centric diet

founded on fertile soils would definitely offer much more than 90mcg

per day. Third, it's a ripoff. A whole bottle of Jarrow MK-7 has

5.4mg of K2. iHerb charges $13.17 for that 5.4mg bottle. They charge

$14.94 for a bottle of 60 5mg capsules (yielding a total of 300mg)

from Carlson. So the Jarrow K2 costs $2.44/mg while the Carlson costs

$0.05/mg.

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[Guest guest]

> would be much better equipped to answer that question, but I

> suspect there is no one-size-fits-all answer anyway. It depends on

> your needs and on many different aspects of your current physiological

> state. Jarrow's K2 supplement, though, is pretty poor IMO. First,

> it's MK-7 and not MK-4, and so far it appears that MK-4 is what is

> directly physiologically useful. Second, RDA aside, the dosage is

> ludicrously low -- 90 MICROgrams. IIRC there was a study of Japanese

> women in which they received 45 MILLIgrams a day for several years

> with no adverse effects and plenty of benefits. (I don't remember

> whether they were taking MK-7 or MK-4, but MK-7 is largely turned into

> MK-4 in the body anyway.) And a healthy animal-food-centric diet

> founded on fertile soils would definitely offer much more than 90mcg

> per day. Third, it's a ripoff. A whole bottle of Jarrow MK-7 has

> 5.4mg of K2. iHerb charges $13.17 for that 5.4mg bottle. They charge

> $14.94 for a bottle of 60 5mg capsules (yielding a total of 300mg)

> from Carlson. So the Jarrow K2 costs $2.44/mg while the Carlson costs

> $0.05/mg.

>

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,

I understand what your saying about the MK-7 but is the MK-4 certain

be active like natural MK-4 (I'm assuming the Carlson's is

synthesized)...and is it certain to be safe to take such high doses

when you would never find that amount naturally?

The Jarrow MK-7 does contain the amount of MK-7 found in 4 oz of hard

cheese which seems like a reasonable dose to me. I do get a

reasonable amount from my diet as well.

Now that I look at it, it appears the carlsons is in powder form in

the caps so I could at least take only part of a capsule to lower the

dose.

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