calcium carbonate

[Guest guest]

I know this is a very old message but I read it today because I was

doing a search about miso. Anyway, it is written there that calcium

carbonate interfere with calcium absorption. I was shoked because I

had always chosen the kind of tofu that is done with calcium

carbonate so I could count on it as a source of calcium.

 

Does anyone know of the source of this affirmation ? Do you agree ?

 

Chantale-Aline

 

, " anji b " <vegan@g...> wrote:

> Regarding my previous post, it should be noted that it was not just

PCRM calling for an end to racial bias in the National School Lunch

Program and other federal food programs. They were joined by: The

National Council of Negro Women, Inc., and the League of United Latin

American Citizens joined the NAACP, the Congressional Black Caucus,

and more than 350 organizations, politicians, and health advocates.

More info: http://www.pcrm.org/news/lawsuit.html

>

> Plant sources of calcium:

>

> *vegetables:

> parsley, turnip greens, turnips, rutabaga, parsnips, watercress,

collard greens, mustard greens, watercress, kale, Chinese cabbage,

okra, broccoli, alfalfa, cucumber, celery, carrots, lettuce,

vegetables & herbs rich in silicon increase calcium absorption

>

> Wild Greens and Herbal sources of calcium:

> red clover, raspberry leaf, nettles, cleavers, horsetail,

coltsfoot, plantain, chamomile, shepherd's purse, borage, chicory,

dandelion, chickweed, oatstraw, sage, comfrey leaves, yellow dock

leaves, mugwort, peppermint, spearmint, lambswort. Many of these can

be eaten as greens, some of them raw others cooked. You wouldn't want

to eat nettles raw, but you can cook it in any way you would cook

spinach.

> Chickweed is a great salad green and it grows through the winter.

Parsley is helpful in regulating the calcium balance in the body.

>

> *seaweed: hijiki, wakame, kelp, agar-agar, nori, kombu, dulse

>

> *nuts & seeds: almonds, filberts, brazil nuts, hazelnuts, sunflower

seeds, pistachios, walnuts, sesame seeds, tahini, sesame salt

[gomasio], cold pressed sesame oil

>

> *beans: garbanzo [or chick peas], kidney beans, black beans, pinto

beans

>

> *grains: amaranth, quinoa, oats, oatmeal, corn tortillas, brown

rice, buckwheat, millet), soy products (unpasteurized miso, tempeh),

spirulina, molasses, carob powder, dried fruit (dates, figs, raisins,

prunes), fruit (papaya, elderberries, lemons, oranges, strawberries,

apricots, fresh coconut juice), ginger, rice bran syrup.

>

> [These are not in order of most potent source.]

>

> What depletes calcium or interfere with its absorption and what to

avoid:

> caffeine in its many forms including chocolate (it causes a high

urinary loss of all the electrolytes and can lead to having kidney or

gallbladder stones), anything containing phosphorus acid (often used

as a preservative in " enriched " white flour, preserved meats,

processed mashed potatoes, nutritional yeast, or it is used as a

bubble producer in soda pop, cider, Perrier, sparkling fruit juices --

because it is so frequently used we get an overabundance of it in

our typical diets and it pulls calcium out of our bones), excess salt

(draws calcium out of our bodies through our urine), white sugar,

tobacco & smoking, alcohol, bran, lack of exercise, stress,

excitement or

> depression, too rapid flow of food through the intestinal tract

(such as diarrhea or enemas), soy that has calcium carbonate added to

it (often tofu is

> made with this ingredient), greens that are high in oxalic acid

(spinach, chard, and beet greens), and mineral oil (this is often

found in cosmetics and can

> cause loss of not only calcium but vitamin D).

> (My summary: exercise, don't smoke, avoid excess animal protein,

salt, caffeine and carbonated drinks. Eat kale, drink calcium

fortified orange juice, get some sun, and forget the rest.)

>

> 'Calcium in Foods' chart (in milligrams)

> (http://www.pcrm.org/health/VSK/VSK5.html

>

> ---------

> Calcium: White Gold

> by David Siegel

>

> You may be interested to know that after I stopped eating chicken

and fish, for the first six months I felt like I wasn't getting

enough protein. I felt tired and out of gas. How can one feel protein-

deficient? Weight loss that isn't caused by starvation is basically a

loss of water and fat. Muscle deterioration comes with disuse, not

protein deficiency--anyone who's ever worn a cast knows that. Feeling

tired has to do with fuel, not parts. If your car is out of gas, do

you drive to an auto parts store?

>

> This feeling of not getting enough protein shows how strongly I was

brainwashed into thinking protein was fuel. My mother, my school, and

everybody else had always told me to get enough protein. But now I

know why I felt so run-down. I had become the dreaded lacto-ovo

vegetarian: one of the most misinformed groups in town. I was trying

to eat complete proteins to replace those I thought I was missing. I

was concocting meat-substitutes to get that all-important protein the

government said I needed. So I was drinking milk and eating cheese.

Lots of cheese. Have you noticed how many vegetarian cookbooks rely

on dairy products to make their recipes taste good? Even more

important, I wasn't getting the carbohydrates I needed, so my muscles

were starved. I was drinking two or three glasses of milk a day.

>

> Sorry, Rudy, but milk is a concentrated source of protein, fat, and

sugar, designed to help babies grow at the time in their lives when

they need the most

> protein.

>

> Can you think of one other species on the planet that drinks milk

after infancy? Cow's milk is great, if you are a calf. In humans,

even skim milk does more harm than good. Of course, the more

saturated fat a dairy product has, the worse it is. A woman's risk of

getting breast cancer rises with her intake of

> saturated fats. Breast cancer affects 2.8 million women in this

country, accounting for $6 billion in health-care bills. According to

the Physicians' Committee for Responsible Medicine, milk has no place

in anyone's diet, especially pregnant and nursing mothers.

>

> I gave up dairy about five years ago. At first, it was " difficult. "

Then I realized it was all in my head. I could just let go of all

that protein brainwashing. After a few months, I stopped craving

cheese and my face stopped looking puffy. Your face will look less

puffy, too, after you give up dairy products completely.

>

> Milk is only good for one group of people. Dairy farmers and their

families. To them, milk is white gold.

>

> The Calcium Connection

>

> We all need calcium. Every cell in our bodies needs calcium. Would

you be surprised to learn that this goes for all mammals? Where do

you think elephants,

> especially pregnant or nursing elephants, get enough calcium?

Calcium is an element, like iron. You can't turn it into anything,and

you can't destroy it. The

> amount of calcium going out always equals the amount coming in,

unless there is a deficit or a surplus. There's more than enough

calcium in the grasslands

> of the African savannah to support all the animals living there.

All animals need calcium, because we naturally lose it, but humans on

high-protein diets are especially good at losing calcium, which is

why they have to consume so much just to stay even.

>

> At the Mayo Clinic, a four year study conducted by Dr. B. Lawrence

Riggs concluded: " There is a large body of evidence indicating no

relationship between calcium intake and bone density; We found no

correlation at all between calcium intake levels and bone loss, not

even a trend. "

>

> Any diet with more than ten percent of its calories as protein will

contribute to calcium and bone loss, leading to osteoporosis in older

people. The more dairy in your diet, the more calcium comes in, and

the more calcium goes out. Drink as much milk as you want-you'll lose

calcium. Osteoporosis is a

> rich-person's disease. Osteoporosis and consumption of dairy

products go hand-in-hand.

>

> What is it about excess protein that causes loss of calcium? Your

kidneys, which did not evolve to handle more than ten percent of your

calories as protein, especially after you are weaned, get rid of

calcium as a reaction to excess protein in a process

called " buffering " . Your kidneys eliminate calcium

> through the urine. Too much protein also triggers the release of

iron, magnesium, zinc, potassium, and many other minerals. By now you

won't be surprised

> to learn that people with high-protein diets get kidney stones, and

vegetarians rarely do. The trick is to use what you get, not pour

more in just because

> you've found a leak.

>

> When you think of calcium, think of elephants and cows. There is

plenty of calcium available in a fresh, green, low-protein diet. Dr.

John McDougall-a

> doctor who's written several books I think are helpful-

writes: " Calcium deficiency, caused by an insufficient amount of

calcium in the diet, is not known to occur in humans. " The minimum

daily requirement (thanks to our pals at the NRC) is completely

skewed from data presented in the '50s and '60s.

>

> Osteoporosis

>

> Nathan Pritikin studied Bantu women in Africa and found that they

bear nine children and breastfeed them for an average of two years on

a strictly vegetarian

> diet with about one-third of our Recommended Daily Allowance of

calcium. They are not calcium deficient, never lose a tooth, and

rarely break a bone.

> Bantus who move to affluent countries develop osteoporosis just as

the local populations do. Pritikin studied the Bantus to come up with

his low-protein, no-fat diet.

>

> Eskimos, on the other hand, get almost twice the recommended daily

requirement of calcium (over 2 grams per day) and have one of the

highest-protein

> diets in the world. Eskimos also have one of the highest rates of

osteoporosis in the world.

>

> Don't we need calcium supplements? Do cows or gorillas need calcium

supplements? Where do cows and elephants get all their calcium? You

think it's different in cows and elephants than in people? How would

you know? It's not. The calcium mechanism is common to all animals,

some are just better at getting rid of excess calcium than we are.If

we take the blinders off, the Dairy Council and the Tobacco Institute

are about the same, only the Dairy Council is doing a better job.

>

> The most recent studies on osteoporosis, show that calcium loss and

osteoporosis are due to 1) a high-protein diet, 2) inactivity, 3)

smoking, and 4) excess salt. Most books on osteoporosis are based on

outdated studies. Those authors never suspected a protein connection.

The keys to having strong bones all your life are to eat a low-

protein diet with lots of green leaves and get daily weight-bearing

exercise. If you want to avoid osteoporosis, you will have to learn

to reduce your calcium intake, not increase it.

>

> Last year I had a neck operation. I had a diskectomy, which is

removal of a disk. This is also called a fusion, because the two

vertebral bodies rest on

> each other and fuse bone-to-bone. I took no supplements, ate a

starch-and-salad diet, and my surgeon said, and I quote: " I've never

had a patient heal this fast. " I was skiing six weeks after the

operation. No joke.

>

> Bones and muscles respond to mechanical stress. Normal walking

isn't strenuous enough to build bones. If housework did the trick,

we'd know about it.

> Strenuous, weight-bearing exercise--the equivalent of a short hike

or an aggressive, vigorous walk every day--adds bones and muscle. Not

exercising loses

> bone mass. Bones are built the same way callouses are built up. One

of the biggest problems astronauts have is bone and muscle loss.

Vegetarians who run

> and hike into their eighties generally do not get shorter or break

hips-they hardly lose any bone. People who take hormones and calcium

tablets still have problems.

>

> Where do you get your calcium? I get maybe 300-500mg per day (who's

counting?) from leafy greens, preferably raw. Salad. Dark green and

dark yellow

> vegetables are loaded with calcium. If you don't lose much, you

don't need much. Contrary to what you may have heard, spinach has

tons of available,

> absorbable calcium. Go for the dark greens and chalk up on calcium.

>

> http://www.dsiegel.com/wiwd/diet/diet.html

> ----------

>

> --

>

>

> _____________

> Free email services provided by http://www.goodkarmamail.com

>

>

> powered by OutBlaze

[Guest guest]

>I know this is a very old message but I read it today because I

was

>doing a search about miso. Anyway, it is written there that

calcium

>carbonate interfere with calcium absorption. I was shoked

because I

>had always chosen the kind of tofu that is done with calcium

>carbonate so I could count on it as a source of calcium.

>Does anyone know of the source of this affirmation ? Do you

agree ?

>Chantale-Aline

 

I just did a quick search in the medical journals listed on

PubMed to see if there is anything like that there. I saw

nothing of the sort.

 

In this article,

http://www.pcrm.org/health/Preventive_Medicine/menopause.html it

says: " If you decide to add extra calcium, calcium-fortified

orange juice is a good choice. It contains more calcium than

milk, and it is in the form of calcium citrate, which is much

more readily absorbed than that in milk or in calcium carbonate

supplements. "

 

Possibly, the person who wrote the article you were reading,

misunderstood the difference between being less well-absorbed

compared to interfering with absorption.

 

I think this is a reliable article on calcium:

http://www.pcrm.org/news/health000131_ftfp_ch.html

 

Deborah