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Calcium Inhibitors #7179
06/04/03 05:25 PM
06/04/03 05:25 PM
Joined: Apr 1999
Posts: 5,336
Bee-Bopping round SnakePit USA
Bourbon Offline OP
Serious Glideritis
Bourbon  Offline OP
Serious Glideritis

Joined: Apr 1999
Posts: 5,336
Bee-Bopping round SnakePit USA
here is a thread that everyone can get in on, I have many of the items, but this gives everyone a chance to check into the various fruits and veggies..

There are many things that inhibit the absorpion of calcium, some fruits, some veggies some minerals some vitamins.

lets see how many we can get listed with some explaination attached to them. this also will give others a chance to see where maybe too much of a specific veggies could pose a problem within their diets.

<img src="/ubbthreads/images/graemlins/read.gif" alt="" /> remember it is all for the love of the glider. we all want to do what is best for our gliders, so this is a way for everyone to get some education.

Lets start with excessive Protein

according to many of the vegan sites this is 2 of the most common myths..

</font><blockquote><font class="small">Quote:</font><hr />
The All-Time Number-One Health Myth: Vegetarians don't get enough

Reality: All right, let's deal with this myth just one more time, so we can
move on to other things. It's by far the most widespread myth about
vegetarians. The proper response is: Yes, vegetarians get enough protein.
What vegetarians don't get--unless they pack in the cheese and eggs--is the
excess protein of the traditional American diet, an excess that leads to kidney
overload and mineral deficiency diseases, such as osteoporosis. Which leads
us to...

The Next Big Health Myth: Vegetarians (and especially vegans) don't get
enough calcium.

Reality: Your non-vegetarian friends are really worried about this one; after
all, if your teeth fall out because you're not drinking milk, they won't want to
be seen with you. But vegetarians and vegans not only get enough calcium,
they also absorb more calcium than people on the standard high-protein diet.
That's because excess protein inhibits the absorption of calcium.

<hr /></blockquote><font class="post">

A cute song witten patient and doctor form


According To Dr Peter H. Gott in an article of Jewish World Review May 10th, 2000 he states
</font><blockquote><font class="small">Quote:</font><hr />
I am unaware of any reputable
studies proving that protein inhibits the absorption
of calcium.

<hr /></blockquote><font class="post">

In 2003 there was an abstract done called "Protein and bone health: literature review and counselling implications." written by
Cloutier GR, Barr SI. Food, Nutrition and Health, University of British Columbia, Vancouver. that reads...

</font><blockquote><font class="small">Quote:</font><hr />
For decades, public health promotion campaigns on bone health have emphasized the importance of
adequate calcium and vitamin D intakes, as well as weight-bearing physical activity. However, no
obvious consensus has emerged on the role of dietary protein. To identify what agreement does exist
in the literature, in this article we review the theoretical basis for protein's role in bone health, assess
some recent cross-sectional and prospective studies, and generate recommendations for practice.
There is general agreement in the literature that higher protein intake increases urinary calcium loss;
the body compensates for this loss by increasing calcium absorption in the gut, providing that
calcium intake is sufficient. A possible explanation for calcium loss, the "acid-ash" hypothesis, is
discussed, and suggestions are made about food choices that may counter the calciuric effect of
protein. A survey of cross-sectional and prospective studies shows equivocal results, with
confounding variables complicating the analysis. Both deficient and excessive protein intakes have
been shown to affect bone health negatively, although lower and upper thresholds have not been
determined. Practical advice on achieving bone health is given, with an emphasis on the use of
Canada's Food Guide to Healthy Eating in setting dietary goals.

<hr /></blockquote><font class="post">

I will expand more on this in a bit.

Re: Calcium Inhibitors [Re: ] #7180
06/05/03 01:45 PM
06/05/03 01:45 PM


From my past experience w/ reptiles, I had read that broccoli, kale, and spinach inhibit calcium absorbsion. This is from Melissa Kaplan's site I believe. (sorry I don't have time right now to look it up).

Re: Calcium Inhibitors [Re: ] #7181
06/05/03 01:53 PM
06/05/03 01:53 PM


Did a quick search on the web, and several websites had the following things listed as inhibiting calcium:
Calcium Inhibitors
Generally it is not that a person is not eating enough calcium - it is one of the most widely occurring nutrients in our diet. It is more the case that lifestyle choices and dietary habits might interfering with the body's ability to absorb calcium. Things that inhibit the absorption of calcium are

  • -Coffee, soft drinks and diuretics
    -Excesses of protein, especially meat
    -Refined sugar or too much of any concentrated sweetener or sweet flavoured food
    -Alcohol, cannabis, cigarettes and other intoxicants
    -Too little or too much exercise
    -Excess salt
    -The Solanum (deadly nightshade) genus of vegetables - tomatoes in particular, but also potatoes, aubergines, peppers, courgettes - they all contain the calcium inhibitor solanine.

This one is a bit long, but has some good info in it too <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Natural Inhibitors in Foods
Healthful, wholesome foods can some-times be a double-edged sword. Substances present in them can interfere with the absorption of nutrients from these as well as from other foods that are eaten at the same time. Spinach is a good example. It's an excellent "source" of calcium, as the nutritionists say. But then, the body does not absorb most of this calcium because spinach is also high in oxalic acid (oxalate) , which ties up about 95% of the calcium, preventing its absorption. The oxalates in spinach also inhibit the absorption of calcium from other foods being eaten at the same time, research has found.
Oxalic acid , the strongest inhibitor of calcium, is also present in dry beans, and to a somewhat smaller extent, in sweet potatoes . Phytic acid (phytate) is another calcium inhibitor, but it becomes a problem chiefly when it is present in foods in large amounts-for instance in wheat bran. Some manufacturers of wheat bran extruded breakfast cereal therefore fortify their products with additional calcium. Foods containing phosphates and phytates also inhibit the absorption of iron, leafy and root vegetables are stacked with both inhibitors. The presence of all these inhibitors in foods is the reason why strict vegetarians often suffer shortfalls of both, calcium and iron. Though several plant foods are good sources of one or both these nutrients, since they also contain oxalates, phytates and/or phosphates greatly decimates the body's ability to utilize these nutrients.

This is off the USDA Nutrient Data Library:(its in an easier to read format in the attachment)

Vegetable _:_ Oxalic acid(g/100g)

Amaranth : 1.09
Asparagus : .13
Beans, snap : .36
Beet leaves : .61
Broccoli : .19
Brussels sprouts : .36
Cabbage : .10
Carrot : .50
Cassava : 1.26
Cauliflower : .15
Celery : .19
Chicory : .21
Chives : 1.48
Collards : .45
Coriander : .01
Corn, sweet : .01
Cucumbers : .02
Eggplant : .19
Endive : .11
Garlic : .36
Kale : .02
Lettuce : .33
Okra : .05
Onion : .05
Parsley : 1.70
Parsnip : .04
Pea : .05
Pepper : .04
Potato : .05
Purslane : 1.31
Radish : .48
Rutabaga : .03
Spinach : .97
Squash : .02
Sweet potato : .24
Tomato : .05
Turnip : .21
Turnip greens : .05
Watercress : .31

Attached Files
Last edited by Epiphany; 06/05/03 02:55 PM.
Re: Calcium Inhibitors [Re: ] #7182
06/05/03 05:52 PM
06/05/03 05:52 PM


Couple of links discussing calcium/protein previously:

Re: Good Alternative

RE: “Balanced Ca/P Ratios” are a misnomer

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