Overdose of Vitamins from Natural Food Sources?

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mle_ii
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Overdose of Vitamins from Natural Food Sources?

Post by mle_ii »

Is it possible to overdose on a vitamin that comes from regular food sources and not supplementation? What might the symptoms be of overdosing on these vitamins?

Looking at fitday for yesterday I see this (bolded the % more than RDA):
Fat-Soluble Vitamins
Nutrient Units Intake RDA % RDA
Vitamin A mcg_RE 4654.6 1000 465.46
Vitamin D mcg 0 5 0
Vitamin E mg_ATE 15.78 10 157.78
Vitamin K mcg 11.29 80 14.11

Water-Soluble Vitamins
Nutrient Units Intake RDA % RDA
Vitamin C mg 116.35 60 193.92
Thiamin mg 0.852 1.2 71
Riboflavin mg 1.38 1.3 106.25
Vitamin B-6 mg 3.42 1.3 263.42
Vitamin B-12 mcg 6.12 2.4 255.06
Niacin mg 37.89 16 236.79

Folate mcg 299.34 400 74.84

Trace Minerals
Nutrient Units Intake RDA % RDA
Iron mg 11.27 10 112.71
Zinc mg 11.13 15 74.17
Selenium mcg 128.52 70 183.6
Copper mg 1.66 --- ---

Major Minerals
Nutrient Units Intake RDA % RDA
Calcium mg 289.88 1000 28.99
Phosphorus mg 1325 700 189.29
Magnesium mg 402.13 420 95.75
Polly
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Post by Polly »

Mike,

It is possible but less likely. For example, people who eat a lot of orange veggies with beta carotene can develop yellow/orange skin. I think the reason we hear more about supplements is because most studies are done using them, rather than natural foods.

Polly
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
Marsha

Post by Marsha »

Hi Mike,

I think the recommeded daily allowances are so low compared to what we optimally should get, that you can't be hurt by any of those numbers. The only one perhaps that you could research more is iron, for men can have consequences if you eat too much. It should be an easy thing to do. (I'm sorry I'd do it now, but my whole day is slipping away and I HAVE to get off the computer)

See ya, Marsha
mle_ii
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Post by mle_ii »

Marsha wrote:Hi Mike,

I think the recommeded daily allowances are so low compared to what we optimally should get, that you can't be hurt by any of those numbers. The only one perhaps that you could research more is iron, for men can have consequences if you eat too much. It should be an easy thing to do. (I'm sorry I'd do it now, but my whole day is slipping away and I HAVE to get off the computer)

See ya, Marsha
I'll look up the Iron info.

FYI It appears that you and Polly are correct. I found a page that I remembered about here: http://lpi.oregonstate.edu/infocenter/contentnuts.html
It seems to indicate that most of the overdose info is for supplements and not for real foods, and I still don't come close to overdose numbers.
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