vitamin absorption questions
 

does anyone know of a like a chart with the vitamins and which areas of the body absorbs them, specifically the kidneys? tia

if my magnesium levels are CRTICALLY low, would that point to a kidney infection possibly? should i see a nephrologist

from http://www.chemocare.com/managing/hy...-magnesium.asp

Also excessive use of diuretics, caffeine and alcohol.

No, I don't really understand this question. When you eat food, the nutrients in the food are absorbed by the GI tract and sent to the blood stream where they circulate and find places that need them. The kidneys do work, and also need support. The work is to eliminate things the body does not need anymore, and also they need energy and support to maintain the cells and tissue. If the kidneys are damaged some things are lost which should be saved, and toxins which need to be eliminated are not, and build up. The kidney has 2 filtering systems to accomplish both tasks.

There are hundreds of places in the body that use magnesium for example. This link explains further:
http://ods.od.nih.gov/factsheets/magnesium/

well here's my logic and tell me if its wrong

i read b12 is mostly absorbed in your mouth? and my b12 was normal/ high

and then mag. is absorbed in the kidneys so i was wondering what other vitamins are mostly in the kidneys so i could compare

side note, i took one of those at home uti tests and it said i have leukocytes in my urine. im really leaning towards an infection now but wondering if it could cause numbness in just my hands or is that mostly a separate issue

i drink a lot of green tea but no coffee

and even still with magnesium as low as mine i dont think it would simply be diet

aldosteronism is interesting

Not entirely true. You should stick to the links I provide on my posts.

B12 is complexed with intrinsic factor in the stomach and absorbed in the intestine. Without intrinsic factor (which may be broken), it is passively absorbed mostly in the intestine but in smaller amounts, hence larger doses are needed. The sublingual is minimally absorbed, no matter what you read!If your B12 is good, and you don't take supplements, then you probably have intact intrinsic factor.

The kidney does not absorb vitamins. It excretes them when they are no longer needed into the urine. Same with minerals. The kidney has a double filter...the first one lets most things thru into the urine, the second loop reabsorbs the critical ones. The kidneys are our filtering system to remove drugs, toxins and other by products of metabolism. Your GI tract absorbs your nutrients from your food or supplements.

If I were you I'd google some general biology sites and read them so you will understand this better. Did you have biology in school? I think most high schools cover this subject these days.

You can be low in magnesium if you eat the wrong foods... it is estimated that 75% of Americans are low in magnesium just from diet.
Please read that link I gave you which explains that.

thanks sorry i am trying to process all of this i have a lot on my plate right now and im compeltely overwhelmed. i am aware most americans are low in magnesium but to me .5 sounds so low that i would need IV therapy. my diet is NOT that bad.

i am taking b12 supplements so i guess it's good theyre working.

would a magnesium deficiency cause an increase in leukocytes? i know that kidney infections cause leukocytes but i was wondering if the magnesium itself could cause that too

and yes i took biology, let's see ten years ago now.

Many people have white cells in the urine. In women they can even contaminate a specimen from the vaginal area.

White cells can also come from the bladder.

Green tea does have caffeine in it and in large amounts will act like a diuretic to cause some magnesium loss.

I think if you had kidney damage it would show up in your blood work from the doctor.

Foods high in magnesium are beans, Edamame beans, nuts especially almonds, yogurt, whole oatmeal. For example 3oz of unsalted almonds have 270mg of magnesium. A cup of navy beans has 109mg.

Here is a food source that tells what is in your food. It is very useful and interesting too:
http://nutritiondata.self.com/

Here is the page for Edamame beans:
http://nutritiondata.self.com/facts/...roducts/9873/2
When using this source, one needs to pay attention to the serving size at the top, for accurate application to yourself.

i took the test 3 times and each time it came back the same, i also have a history of infections so i definitely need to get just a regular blood test i think.

i have never heard of edamame beans. thanks for the links. i've used the nutritionaldata site to try to gain weight.